diff --git a/.github/workflows/translationDryRun.yml b/.github/workflows/translationDryRun.yml
deleted file mode 100644
index f0a2ecf41a16..000000000000
--- a/.github/workflows/translationDryRun.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-name: Translation Dry Run
-
-on:
-  pull_request:
-    types: [opened, synchronize]
-    paths-ignore: ['docs', 'help']
-
-jobs:
-  # We always run generateTranslations --dry-run in CI to verify the script still works end-to-end.
-  # It imports from @src and @libs; Bun runs it with stubReactNative preload for modules that expect RN.
-  dryRun:
-    runs-on: blacksmith-4vcpu-ubuntu-2404
-    steps:
-      - name: Checkout
-        uses: useblacksmith/checkout@1c9394c220d293645707b625ba9d79685f093a8f # v1
-
-      - name: Setup Node
-        uses: ./.github/actions/composite/setupNode
-
-      - name: Capture pre-run checksum
-        id: before
-        run: echo "sha=$(sha256sum src/languages/it.ts | cut -d ' ' -f1)" >> "$GITHUB_OUTPUT"
-
-      - name: Run generateTranslations dry run
-        run: npx bun ./scripts/generateTranslations.ts --dry-run --locales it
-
-      - name: Verify translation output
-        run: |
-          # The [it] prefix only ever comes from the dry-run's dummy translator, so a checksum
-          # change plus this marker proves the script actually re-ran and wrote fresh output,
-          # not that it silently no-op'd and left the already-committed file untouched.
-          test "$(sha256sum src/languages/it.ts | cut -d ' ' -f1)" != "${{ steps.before.outputs.sha }}"
-          grep -q 'This file was automatically generated' src/languages/it.ts
-          grep -q '\[it\]' src/languages/it.ts
-
-      - name: Explain failure
-        if: failure()
-        run: |
-          echo '::error:: generateTranslations --dry-run failed or did not produce expected output in src/languages/it.ts. Check script imports and recent changes to @src/@libs code the script depends on.'
-          exit 1
diff --git a/.github/workflows/typecheck.yml b/.github/workflows/typecheck.yml
index 90cdf1780ecb..cee1d7df04c3 100644
--- a/.github/workflows/typecheck.yml
+++ b/.github/workflows/typecheck.yml
@@ -5,7 +5,7 @@ on:
   pull_request:
     types: [opened, synchronize]
     branches-ignore: [staging, production]
-    paths: ['**.js', '**.ts', '**.tsx', 'package.json', 'package-lock.json', '**/tsconfig.json']
+    paths: ['**.js', '**.ts', '**.tsx', 'package.json', 'package-lock.json', '**/tsconfig*.json']
 
 concurrency:
   group: ${{ github.ref == 'refs/heads/main' && format('{0}-{1}', github.ref, github.sha) || github.ref }}-typecheck
diff --git a/config/eslint/eslint.config.mjs b/config/eslint/eslint.config.mjs
index 28c9c5988fdb..859d4e2f38e9 100644
--- a/config/eslint/eslint.config.mjs
+++ b/config/eslint/eslint.config.mjs
@@ -715,46 +715,20 @@ const config = defineConfig([
     },
 
     {
-        files: ['server/**/*.ts', 'server/**/*.tsx'],
+        files: ['scripts/**/*.ts', 'tests/tooling/**/*.ts', 'server/{libs,plugins,stubs}/**/*.{ts,tsx}', 'evals/**/*.ts'],
         languageOptions: {
             parserOptions: {
-                project: path.resolve(projectRoot, 'server/tsconfig.json'),
+                project: path.resolve(projectRoot, 'tsconfig.bun.json'),
                 projectService: false,
             },
         },
     },
 
     {
-        // Its own project because `@types/bun`'s globals conflict with the app's, so it is excluded from
-        // the root tsconfig and would otherwise belong to no project at all.
-        files: ['evals/**/*.ts'],
+        files: ['.github/**/*.{ts,tsx,js}', 'web/proxy.ts', 'config/**/*.{ts,tsx,mts,mjs,cjs,js}'],
         languageOptions: {
             parserOptions: {
-                project: path.resolve(projectRoot, 'evals/tsconfig.json'),
-                projectService: false,
-            },
-        },
-    },
-
-    {
-        // CIGitLogic is excluded from the root tsconfig because it needs @types/bun, so type-aware rules have to
-        // be pointed at the project that does own it. See tests/tooling/README.md.
-        files: ['tests/tooling/CIGitLogic.test.ts'],
-        languageOptions: {
-            parserOptions: {
-                project: path.resolve(projectRoot, 'tests/tooling/tsconfig.json'),
-                projectService: false,
-            },
-        },
-    },
-
-    {
-        // Bun-only scripts are excluded from the root tsconfig because they need @types/bun, so type-aware rules
-        // have to be pointed at the project that owns them. See scripts/tsconfig.json.
-        files: ['scripts/applyPatches.ts', 'scripts/lint.ts', 'scripts/typecheck.ts'],
-        languageOptions: {
-            parserOptions: {
-                project: path.resolve(projectRoot, 'scripts/tsconfig.json'),
+                project: path.resolve(projectRoot, 'tsconfig.node.json'),
                 projectService: false,
             },
         },
diff --git a/config/rsbuild/rsbuild.common.ts b/config/rsbuild/rsbuild.common.ts
index 52599fc848cd..91a498bd8a14 100644
--- a/config/rsbuild/rsbuild.common.ts
+++ b/config/rsbuild/rsbuild.common.ts
@@ -563,7 +563,7 @@ const getCommonConfiguration = async ({file = '.env', platform = 'web', isDevSer
                     ...(sentryWebpackPlugin
                         ? ([
                               sentryWebpackPlugin({
-                                  authToken: process.env.SENTRY_AUTH_TOKEN as string | undefined,
+                                  authToken: process.env.SENTRY_AUTH_TOKEN,
                                   org: 'expensify',
                                   project: 'app',
                                   release: {
diff --git a/evals/tsconfig.json b/evals/tsconfig.json
deleted file mode 100644
index 1ebdf2aa05a9..000000000000
--- a/evals/tsconfig.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-    "compilerOptions": {
-        "module": "preserve",
-        "moduleResolution": "bundler",
-        "target": "ES2023",
-        "rootDir": "..",
-        "noEmit": true,
-        "strict": true,
-        // bun-types redeclares node globals, and expensify-common ships ambient jQuery types. Neither is
-        // ours to fix, and neither affects whether the evals themselves typecheck.
-        "skipLibCheck": true,
-        "resolveJsonModule": true,
-        "types": ["bun"],
-        "paths": {
-            "@github/*": ["../.github/*"],
-            "@prompts/*": ["../prompts/*"],
-            "@scripts/*": ["../scripts/*", "../.github/scripts/*"]
-        }
-    },
-    "include": ["."]
-}
diff --git a/scripts/tsconfig.json b/scripts/tsconfig.json
deleted file mode 100644
index fa2371028e14..000000000000
--- a/scripts/tsconfig.json
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-    // Files listed below use Bun's `$` shell (or another Bun-only API), which needs `@types/bun`. Those types
-    // redeclare globals the app's own types already own (see tests/tooling/tsconfig.json for the same
-    // tradeoff), so this project confines them to just the files that need them. Everything else in scripts/
-    // stays in the root project, where it sees the app's real types.
-    //
-    // This can't be widened to the whole scripts/ directory: several scripts (e.g. generateTranslations.ts,
-    // eslint-report.ts) import from @src/*, which transitively pulls in a large slice of the app. Under this
-    // project's narrower `types`, that slice loses access to ambient declarations the root project provides
-    // (asset module types, Onyx's generic augmentations, etc.) and re-typechecks with real errors — e.g. Onyx
-    // entries collapsing to `Record<string, unknown>` and `@assets/*.svg` imports failing to resolve.
-    //
-    // To add a new Bun-shell script: add its filename to `files` below.
-    //
-    // `include: []` is required: `extends` inherits the root project's `include`, which would otherwise
-    // pull the whole app in here and reintroduce the same conflict this file exists to avoid.
-    "extends": "../tsconfig.json",
-    "compilerOptions": {
-        "types": ["@types/bun"],
-        "noEmit": true
-    },
-    "include": [],
-    "files": ["applyPatches.ts", "lint.ts", "typecheck.ts"]
-}
diff --git a/scripts/typecheck.ts b/scripts/typecheck.ts
index b152d97223fe..62063313cd19 100644
--- a/scripts/typecheck.ts
+++ b/scripts/typecheck.ts
@@ -4,7 +4,7 @@
  * Type-check the repo with the TypeScript 7 native compiler.
  *
  *   bun scripts/typecheck.ts              -> check every project CI gates on
- *   bun scripts/typecheck.ts evals        -> check just the named project directories
+ *   bun scripts/typecheck.ts tsconfig.bun.json -> check just the named project
  *
  * Every project is checked even after one fails, so a single run reports every error in the repo.
  */
@@ -18,14 +18,14 @@ const projectRoot = `${import.meta.dir}/..`;
 // Invoke that bin by path so a leftover `.bin/tsc` from `@typescript/old` cannot win.
 const tsc = `${projectRoot}/node_modules/typescript/bin/tsc`;
 
-/** Project directories, relative to the repo root, that `npm run typecheck` and CI check. */
-const DEFAULT_PROJECTS = ['.', 'tests/tooling', 'server', 'server/victory-chart-renderer', 'scripts'];
+/** TypeScript projects, relative to the repo root, that `npm run typecheck` and CI check. */
+const DEFAULT_PROJECTS = ['tsconfig.json', 'tsconfig.bun.json', 'tsconfig.node.json', 'server/victory-chart-renderer/tsconfig.json'];
 
 const cli = new CLI({
     positionalArgs: [
         {
             name: 'projects',
-            description: 'Project directories to type-check, relative to the repo root (default: the five CI-gated projects)',
+            description: 'tsconfig paths to type-check, relative to the repo root',
             variadic: true,
             default: DEFAULT_PROJECTS,
         },
@@ -36,13 +36,14 @@ const {projects} = cli.positionalArgs;
 
 const failed: string[] = [];
 for (const project of projects) {
-    const tsconfig = `${project}/tsconfig.json`;
+    const tsconfig = project.endsWith('.json') ? project : `${project}/tsconfig.json`;
     console.log(`\nType checking ${tsconfig}...`);
 
     // The build info file lets repeat runs skip unchanged projects. It is named apart from the
     // `tsconfig.tsbuildinfo` that `incremental` defaults to so that running TypeScript 6 by hand in
     // the same worktree can't feed it a build info file written by a different compiler.
-    const result = await $`${tsc} --noEmit --incremental -p ${tsconfig} --tsBuildInfoFile ${project}/tsconfig.ts7.tsbuildinfo`.cwd(projectRoot).nothrow();
+    const tsBuildInfoFile = `${tsconfig.replace(/\.json$/, '')}.ts7.tsbuildinfo`;
+    const result = await $`${tsc} --noEmit --incremental -p ${tsconfig} --tsBuildInfoFile ${tsBuildInfoFile}`.cwd(projectRoot).nothrow();
     if (result.exitCode !== 0) {
         failed.push(tsconfig);
     }
diff --git a/scripts/utils/Git.ts b/scripts/utils/Git.ts
index 16e24b00be33..36bc8c7fcd4d 100644
--- a/scripts/utils/Git.ts
+++ b/scripts/utils/Git.ts
@@ -39,7 +39,7 @@ function execSync(command: string, options?: ExecSyncOptions) {
 }
 
 const IS_CI = process.env.CI === 'true';
-const GITHUB_BASE_REF = process.env.GITHUB_BASE_REF as string | undefined;
+const GITHUB_BASE_REF = process.env.GITHUB_BASE_REF;
 
 /**
  * Represents a single changed line in a git diff.
diff --git a/server/tsconfig.json b/server/tsconfig.json
deleted file mode 100644
index 86c650bb84b4..000000000000
--- a/server/tsconfig.json
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "extends": "../tsconfig.json",
-    "compilerOptions": {
-        "types": ["@types/bun"],
-        "paths": {
-            "@assets/*": ["../assets/*"],
-            "@components/*": ["../src/components/*"],
-            "@github/*": ["../.github/*"],
-            "@hooks/*": ["../src/hooks/*"],
-            "@libs/*": ["../src/libs/*"],
-            "@navigation/*": ["../src/libs/Navigation/*"],
-            "@pages/*": ["../src/pages/*"],
-            "@prompts/*": ["../prompts/*"],
-            "@scripts/*": ["../scripts/*", "../.github/scripts/*"],
-            "@selectors/*": ["../src/selectors/*"],
-            "@server/*": ["./*"],
-            "@src/*": ["../src/*"],
-            "@styles/*": ["../src/styles/*"],
-            "@userActions/*": ["../src/libs/actions/*"],
-            "tests/*": ["../tests/*"]
-        }
-    },
-    "include": ["libs", "plugins", "stubs"],
-    "exclude": ["victory-chart-renderer/dist", "victory-chart-renderer/.dev"]
-}
diff --git a/server/victory-chart-renderer/tsconfig.json b/server/victory-chart-renderer/tsconfig.json
index 97e6aa8dd7f3..ffc13e115046 100644
--- a/server/victory-chart-renderer/tsconfig.json
+++ b/server/victory-chart-renderer/tsconfig.json
@@ -1,5 +1,5 @@
 {
-    "extends": "../tsconfig.json",
+    "extends": "../../tsconfig.base.json",
     "compilerOptions": {
         "types": ["react-native", "react-native-web", "node"]
     },
diff --git a/src/CONST/index.ts b/src/CONST/index.ts
index 5cc3a5c547b5..3de9f2a471c4 100644
--- a/src/CONST/index.ts
+++ b/src/CONST/index.ts
@@ -1,5 +1,3 @@
-import type {SearchFilterKey} from '@components/Search/types';
-
 import type ResponsiveLayoutResult from '@hooks/useResponsiveLayout/types';
 
 import {
@@ -13,13 +11,7 @@ import {
     MENU_ANIMATION_DURATION as ANIMATION_TIMING_MENU_ANIMATION_DURATION,
 } from '@libs/Animation/animationTiming';
 import MULTIFACTOR_AUTHENTICATION_VALUES from '@libs/MultifactorAuthentication/VALUES';
-import addTrailingForwardSlash from '@libs/UrlUtils';
-
-import variables from '@styles/variables';
 
-import ONYXKEYS from '@src/ONYXKEYS';
-import SCREENS from '@src/SCREENS';
-import type {PolicyTagLists} from '@src/types/onyx';
 import type PlaidBankAccount from '@src/types/onyx/PlaidBankAccount';
 
 import type {ValueOf} from 'type-fest';
@@ -27,11 +19,21 @@ import type {ValueOf} from 'type-fest';
 /* eslint-disable @typescript-eslint/naming-convention */
 import {add as dateAdd} from 'date-fns';
 import {sub as dateSubtract} from 'date-fns/sub';
-import Config from 'react-native-config';
-import * as KeyCommand from 'react-native-key-command';
 
 import CI from './CI';
 import {LOCALES} from './LOCALES';
+// Isolate runtime-specific dependencies so Bun can import CONST through the platformless fallback.
+import CONST_RUNTIME from './runtime';
+
+type DefaultPolicyTagLists = Record<
+    string,
+    {
+        name: string;
+        orderWeight: number;
+        required: boolean;
+        tags: Record<string, never>;
+    }
+>;
 
 // Creating a default array and object this way because objects ({}) and arrays ([]) are not stable types.
 // Freezing the array ensures that it cannot be unintentionally modified.
@@ -48,7 +50,7 @@ const DEFAULT_MISSING_ID = -1;
 const DEFAULT_COUNTRY_CODE = 1;
 const CLOUDFRONT_DOMAIN = 'cloudfront.net';
 const CLOUDFRONT_URL = `https://d2k5nsl2zxldvw.${CLOUDFRONT_DOMAIN}`;
-const ACTIVE_EXPENSIFY_URL = addTrailingForwardSlash(Config?.NEW_EXPENSIFY_URL ?? 'https://new.expensify.com');
+const ACTIVE_EXPENSIFY_URL = CONST_RUNTIME.NEW_EXPENSIFY_URL;
 const USE_EXPENSIFY_URL = 'https://use.expensify.com';
 const EXPENSIFY_MOBILE_URL = 'https://expensify.com/mobile';
 const EXPENSIFY_URL = 'https://www.expensify.com';
@@ -64,17 +66,19 @@ const MIN_DATE = dateSubtract(new Date(), {years: 20});
 const EXPENSIFY_POLICY_DOMAIN = 'expensify-policy';
 const EXPENSIFY_POLICY_DOMAIN_EXTENSION = '.exfy';
 
-const keyModifierControl = KeyCommand?.constants?.keyModifierControl ?? 'keyModifierControl';
-const keyModifierCommand = KeyCommand?.constants?.keyModifierCommand ?? 'keyModifierCommand';
-const keyModifierShift = KeyCommand?.constants?.keyModifierShift ?? 'keyModifierShift';
-const keyModifierShiftControl = KeyCommand?.constants?.keyModifierShiftControl ?? 'keyModifierShiftControl';
-const keyModifierShiftCommand = KeyCommand?.constants?.keyModifierShiftCommand ?? 'keyModifierShiftCommand';
-const keyInputEscape = KeyCommand?.constants?.keyInputEscape ?? 'keyInputEscape';
-const keyInputEnter = KeyCommand?.constants?.keyInputEnter ?? 'keyInputEnter';
-const keyInputUpArrow = KeyCommand?.constants?.keyInputUpArrow ?? 'keyInputUpArrow';
-const keyInputDownArrow = KeyCommand?.constants?.keyInputDownArrow ?? 'keyInputDownArrow';
-const keyInputLeftArrow = KeyCommand?.constants?.keyInputLeftArrow ?? 'keyInputLeftArrow';
-const keyInputRightArrow = KeyCommand?.constants?.keyInputRightArrow ?? 'keyInputRightArrow';
+const {
+    keyModifierControl,
+    keyModifierCommand,
+    keyModifierShift,
+    keyModifierShiftControl,
+    keyModifierShiftCommand,
+    keyInputEscape,
+    keyInputEnter,
+    keyInputUpArrow,
+    keyInputDownArrow,
+    keyInputLeftArrow,
+    keyInputRightArrow,
+} = CONST_RUNTIME.KEY_COMMANDS;
 const keyInputSpace = ' ';
 
 // describes if a shortcut key can cause navigation
@@ -270,7 +274,7 @@ const CONST = {
         TEXTAREA: 'TEXTAREA',
     },
     POPOVER_ACCOUNT_SWITCHER_POSITION: {
-        horizontal: 12 + variables.navigationTabBarSize,
+        horizontal: 12 + CONST_RUNTIME.STYLE_VARIABLES.navigationTabBarSize,
         vertical: 72,
     },
     POPOVER_DROPDOWN_WIDTH: 334,
@@ -3723,27 +3727,7 @@ const CONST = {
         },
     },
 
-    ACCOUNT_ID: {
-        ACCOUNTING: Number(Config?.EXPENSIFY_ACCOUNT_ID_ACCOUNTING ?? 9645353),
-        ACCOUNTS_PAYABLE: Number(Config?.EXPENSIFY_ACCOUNT_ID_ACCOUNTS_PAYABLE ?? 10903701),
-        ADMIN: Number(Config?.EXPENSIFY_ACCOUNT_ID_ADMIN ?? -1),
-        BILLS: Number(Config?.EXPENSIFY_ACCOUNT_ID_BILLS ?? 1371),
-        CHRONOS: Number(Config?.EXPENSIFY_ACCOUNT_ID_CHRONOS ?? 10027416),
-        CONCIERGE: Number(Config?.EXPENSIFY_ACCOUNT_ID_CONCIERGE ?? 8392101),
-        CONTRIBUTORS: Number(Config?.EXPENSIFY_ACCOUNT_ID_CONTRIBUTORS ?? 9675014),
-        FIRST_RESPONDER: Number(Config?.EXPENSIFY_ACCOUNT_ID_FIRST_RESPONDER ?? 9375152),
-        HELP: Number(Config?.EXPENSIFY_ACCOUNT_ID_HELP ?? -1),
-        INTEGRATION_TESTING_CREDS: Number(Config?.EXPENSIFY_ACCOUNT_ID_INTEGRATION_TESTING_CREDS ?? -1),
-        NOTIFICATIONS: Number(Config?.EXPENSIFY_ACCOUNT_ID_NOTIFICATIONS ?? 11665625),
-        PAYROLL: Number(Config?.EXPENSIFY_ACCOUNT_ID_PAYROLL ?? 9679724),
-        QA: Number(Config?.EXPENSIFY_ACCOUNT_ID_QA ?? 3126513),
-        QA_TRAVIS: Number(Config?.EXPENSIFY_ACCOUNT_ID_QA_TRAVIS ?? 8595733),
-        RECEIPTS: Number(Config?.EXPENSIFY_ACCOUNT_ID_RECEIPTS ?? -1),
-        REWARDS: Number(Config?.EXPENSIFY_ACCOUNT_ID_REWARDS ?? 11023767), // rewards@expensify.com
-        STUDENT_AMBASSADOR: Number(Config?.EXPENSIFY_ACCOUNT_ID_STUDENT_AMBASSADOR ?? 10476956),
-        SVFG: Number(Config?.EXPENSIFY_ACCOUNT_ID_SVFG ?? 2012843),
-        QA_GUIDE: Number(Config?.EXPENSIFY_ACCOUNT_ID_QA_GUIDE ?? 14365522),
-    },
+    ACCOUNT_ID: CONST_RUNTIME.EXPENSIFY_ACCOUNT_IDS,
 
     ENVIRONMENT: {
         DEV: 'development',
@@ -4049,7 +4033,7 @@ const CONST = {
             REPLACE_RECEIPT: 'replaceReceipt',
         },
         COMPACT_RECEIPT: {
-            MAX_WIDTH: variables.receiptPreviewMaxWidth,
+            MAX_WIDTH: CONST_RUNTIME.STYLE_VARIABLES.receiptPreviewMaxWidth,
             DEFAULT_ASPECT_RATIO: 16 / 9,
             MAX_HEIGHT_PIXEL_ADJUSTMENT: 5,
         },
@@ -4601,7 +4585,7 @@ const CONST = {
                 required: false,
                 tags: {},
             },
-        } as PolicyTagLists,
+        } as DefaultPolicyTagLists,
         DEFAULT_TAG_NAME: 'Tag',
         REQUIRE_RECEIPTS_OVER_OPTIONS: {
             DEFAULT: 'default',
@@ -5475,7 +5459,7 @@ const CONST = {
 
         // This constant sets a margin equal to the rotate button's height (medium-sized Button (40px)), which is the tallest element in the controls row.
         // It ensures the controls row isn't cropped if the browser height is reduced too much.
-        CONTAINER_VERTICAL_MARGIN: variables.componentSizeNormal,
+        CONTAINER_VERTICAL_MARGIN: CONST_RUNTIME.STYLE_VARIABLES.componentSizeNormal,
     },
     MICROSECONDS_PER_MS: 1000,
     MILLISECONDS_PER_SECOND: 1000,
@@ -7718,15 +7702,7 @@ const CONST = {
             LAST_12_MONTHS: 'last-12-months',
             LAST_STATEMENT: 'last-statement',
         },
-        SNAPSHOT_ONYX_KEYS: [
-            ONYXKEYS.COLLECTION.REPORT,
-            ONYXKEYS.COLLECTION.POLICY,
-            ONYXKEYS.COLLECTION.TRANSACTION,
-            ONYXKEYS.COLLECTION.TRANSACTION_VIOLATIONS,
-            ONYXKEYS.COLLECTION.REPORT_ACTIONS,
-            ONYXKEYS.PERSONAL_DETAILS_LIST,
-            ONYXKEYS.COLLECTION.REPORT_NAME_VALUE_PAIRS,
-        ],
+        SNAPSHOT_ONYX_KEYS: CONST_RUNTIME.SEARCH_SNAPSHOT_ONYX_KEYS,
         SEARCH_KEYS: {
             EXPENSES: 'expenses',
             REPORTS: 'reports',
@@ -7810,17 +7786,7 @@ const CONST = {
         CASH_BACK: 'earnedCashback',
     },
 
-    EXCLUDE_FROM_LAST_VISITED_PATH: [
-        SCREENS.NOT_FOUND,
-        SCREENS.SAML_SIGN_IN,
-        SCREENS.VALIDATE_LOGIN,
-        SCREENS.MIGRATED_USER_WELCOME_MODAL.DYNAMIC_ROOT,
-        SCREENS.SUBMIT_PLAN_WELCOME_MODAL.DYNAMIC_ROOT,
-        SCREENS.AI_FEATURES_PROMO_MODAL.DYNAMIC_ROOT,
-        SCREENS.MONEY_REQUEST.STEP_SCAN,
-        SCREENS.DOMAIN.MEMBERS_MOVE_TO_GROUP,
-        ...Object.values(SCREENS.MULTIFACTOR_AUTHENTICATION),
-    ] as string[],
+    EXCLUDE_FROM_LAST_VISITED_PATH: CONST_RUNTIME.EXCLUDE_FROM_LAST_VISITED_PATH,
 
     CANCELLATION_TYPE: {
         MANUAL: 'manual',
@@ -9576,6 +9542,8 @@ const SUBMIT_FEATURE_IDS: ReadonlySet<string> = new Set([
     CONST.UPGRADE_FEATURE_INTRO_MAPPING.invoicing.id,
 ]);
 
+type SearchFilterKey = ValueOf<typeof CONST.SEARCH.SYNTAX_FILTER_KEYS> | ValueOf<typeof CONST.SEARCH.SYNTAX_ROOT_KEYS>;
+
 const CONTINUATION_DETECTION_SEARCH_FILTER_KEYS = [
     CONST.SEARCH.SYNTAX_FILTER_KEYS.TO,
     CONST.SEARCH.SYNTAX_FILTER_KEYS.FROM,
diff --git a/src/CONST/runtime.native.ts b/src/CONST/runtime.native.ts
new file mode 100644
index 000000000000..a57cfd5ff9f8
--- /dev/null
+++ b/src/CONST/runtime.native.ts
@@ -0,0 +1,3 @@
+import CONST_RUNTIME from './runtimeConfigured';
+
+export default CONST_RUNTIME;
diff --git a/src/CONST/runtime.ts b/src/CONST/runtime.ts
new file mode 100644
index 000000000000..dc94525af62e
--- /dev/null
+++ b/src/CONST/runtime.ts
@@ -0,0 +1,4 @@
+import CONST_RUNTIME_DEFAULTS from './runtimeDefaults';
+
+// Bun resolves this module without a platform suffix. Web and native bundlers select their configured variants.
+export default CONST_RUNTIME_DEFAULTS;
diff --git a/src/CONST/runtime.web.ts b/src/CONST/runtime.web.ts
new file mode 100644
index 000000000000..a57cfd5ff9f8
--- /dev/null
+++ b/src/CONST/runtime.web.ts
@@ -0,0 +1,3 @@
+import CONST_RUNTIME from './runtimeConfigured';
+
+export default CONST_RUNTIME;
diff --git a/src/CONST/runtimeConfigured.ts b/src/CONST/runtimeConfigured.ts
new file mode 100644
index 000000000000..9d28e4e51bcb
--- /dev/null
+++ b/src/CONST/runtimeConfigured.ts
@@ -0,0 +1,82 @@
+import addTrailingForwardSlash from '@libs/UrlUtils';
+
+import variables from '@styles/variables';
+
+import ONYXKEYS from '@src/ONYXKEYS';
+import SCREENS from '@src/SCREENS';
+
+import Config from 'react-native-config';
+import * as KeyCommand from 'react-native-key-command';
+
+import type {ConstRuntime} from './runtimeDefaults';
+
+import CONST_RUNTIME_DEFAULTS from './runtimeDefaults';
+
+/**
+ * Web and native builds resolve their platform files to this implementation, which replaces the
+ * Bun-safe defaults with values from React Native Config, key commands, styles, Onyx, and screens.
+ */
+const CONST_RUNTIME: ConstRuntime = {
+    NEW_EXPENSIFY_URL: addTrailingForwardSlash(Config?.NEW_EXPENSIFY_URL ?? CONST_RUNTIME_DEFAULTS.NEW_EXPENSIFY_URL),
+    KEY_COMMANDS: {
+        keyModifierControl: KeyCommand?.constants?.keyModifierControl ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyModifierControl,
+        keyModifierCommand: KeyCommand?.constants?.keyModifierCommand ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyModifierCommand,
+        keyModifierShift: KeyCommand?.constants?.keyModifierShift ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyModifierShift,
+        keyModifierShiftControl: KeyCommand?.constants?.keyModifierShiftControl ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyModifierShiftControl,
+        keyModifierShiftCommand: KeyCommand?.constants?.keyModifierShiftCommand ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyModifierShiftCommand,
+        keyInputEscape: KeyCommand?.constants?.keyInputEscape ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyInputEscape,
+        keyInputEnter: KeyCommand?.constants?.keyInputEnter ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyInputEnter,
+        keyInputUpArrow: KeyCommand?.constants?.keyInputUpArrow ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyInputUpArrow,
+        keyInputDownArrow: KeyCommand?.constants?.keyInputDownArrow ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyInputDownArrow,
+        keyInputLeftArrow: KeyCommand?.constants?.keyInputLeftArrow ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyInputLeftArrow,
+        keyInputRightArrow: KeyCommand?.constants?.keyInputRightArrow ?? CONST_RUNTIME_DEFAULTS.KEY_COMMANDS.keyInputRightArrow,
+    },
+    STYLE_VARIABLES: {
+        componentSizeNormal: variables.componentSizeNormal,
+        navigationTabBarSize: variables.navigationTabBarSize,
+        receiptPreviewMaxWidth: variables.receiptPreviewMaxWidth,
+    },
+    EXPENSIFY_ACCOUNT_IDS: {
+        ACCOUNTING: Number(Config?.EXPENSIFY_ACCOUNT_ID_ACCOUNTING ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.ACCOUNTING),
+        ACCOUNTS_PAYABLE: Number(Config?.EXPENSIFY_ACCOUNT_ID_ACCOUNTS_PAYABLE ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.ACCOUNTS_PAYABLE),
+        ADMIN: Number(Config?.EXPENSIFY_ACCOUNT_ID_ADMIN ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.ADMIN),
+        BILLS: Number(Config?.EXPENSIFY_ACCOUNT_ID_BILLS ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.BILLS),
+        CHRONOS: Number(Config?.EXPENSIFY_ACCOUNT_ID_CHRONOS ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.CHRONOS),
+        CONCIERGE: Number(Config?.EXPENSIFY_ACCOUNT_ID_CONCIERGE ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.CONCIERGE),
+        CONTRIBUTORS: Number(Config?.EXPENSIFY_ACCOUNT_ID_CONTRIBUTORS ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.CONTRIBUTORS),
+        FIRST_RESPONDER: Number(Config?.EXPENSIFY_ACCOUNT_ID_FIRST_RESPONDER ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.FIRST_RESPONDER),
+        HELP: Number(Config?.EXPENSIFY_ACCOUNT_ID_HELP ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.HELP),
+        INTEGRATION_TESTING_CREDS: Number(Config?.EXPENSIFY_ACCOUNT_ID_INTEGRATION_TESTING_CREDS ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.INTEGRATION_TESTING_CREDS),
+        NOTIFICATIONS: Number(Config?.EXPENSIFY_ACCOUNT_ID_NOTIFICATIONS ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.NOTIFICATIONS),
+        PAYROLL: Number(Config?.EXPENSIFY_ACCOUNT_ID_PAYROLL ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.PAYROLL),
+        QA: Number(Config?.EXPENSIFY_ACCOUNT_ID_QA ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.QA),
+        QA_TRAVIS: Number(Config?.EXPENSIFY_ACCOUNT_ID_QA_TRAVIS ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.QA_TRAVIS),
+        RECEIPTS: Number(Config?.EXPENSIFY_ACCOUNT_ID_RECEIPTS ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.RECEIPTS),
+        REWARDS: Number(Config?.EXPENSIFY_ACCOUNT_ID_REWARDS ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.REWARDS),
+        STUDENT_AMBASSADOR: Number(Config?.EXPENSIFY_ACCOUNT_ID_STUDENT_AMBASSADOR ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.STUDENT_AMBASSADOR),
+        SVFG: Number(Config?.EXPENSIFY_ACCOUNT_ID_SVFG ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.SVFG),
+        QA_GUIDE: Number(Config?.EXPENSIFY_ACCOUNT_ID_QA_GUIDE ?? CONST_RUNTIME_DEFAULTS.EXPENSIFY_ACCOUNT_IDS.QA_GUIDE),
+    },
+    SEARCH_SNAPSHOT_ONYX_KEYS: [
+        ONYXKEYS.COLLECTION.REPORT,
+        ONYXKEYS.COLLECTION.POLICY,
+        ONYXKEYS.COLLECTION.TRANSACTION,
+        ONYXKEYS.COLLECTION.TRANSACTION_VIOLATIONS,
+        ONYXKEYS.COLLECTION.REPORT_ACTIONS,
+        ONYXKEYS.PERSONAL_DETAILS_LIST,
+        ONYXKEYS.COLLECTION.REPORT_NAME_VALUE_PAIRS,
+    ],
+    EXCLUDE_FROM_LAST_VISITED_PATH: [
+        SCREENS.NOT_FOUND,
+        SCREENS.SAML_SIGN_IN,
+        SCREENS.VALIDATE_LOGIN,
+        SCREENS.MIGRATED_USER_WELCOME_MODAL.DYNAMIC_ROOT,
+        SCREENS.SUBMIT_PLAN_WELCOME_MODAL.DYNAMIC_ROOT,
+        SCREENS.AI_FEATURES_PROMO_MODAL.DYNAMIC_ROOT,
+        SCREENS.MONEY_REQUEST.STEP_SCAN,
+        SCREENS.DOMAIN.MEMBERS_MOVE_TO_GROUP,
+        ...Object.values(SCREENS.MULTIFACTOR_AUTHENTICATION),
+    ],
+};
+
+export default CONST_RUNTIME;
diff --git a/src/CONST/runtimeDefaults.ts b/src/CONST/runtimeDefaults.ts
new file mode 100644
index 000000000000..0562c91da7c8
--- /dev/null
+++ b/src/CONST/runtimeDefaults.ts
@@ -0,0 +1,111 @@
+/**
+ * Values that CONST needs from platform-specific modules, plus Bun-safe fallbacks.
+ * Keep this shape runtime-agnostic so translation tooling can import the full CONST barrel.
+ */
+type ConstRuntime = {
+    NEW_EXPENSIFY_URL: string;
+    KEY_COMMANDS: {
+        keyModifierControl: string;
+        keyModifierCommand: string;
+        keyModifierShift: string;
+        keyModifierShiftControl: string;
+        keyModifierShiftCommand: string;
+        keyInputEscape: string;
+        keyInputEnter: string;
+        keyInputUpArrow: string;
+        keyInputDownArrow: string;
+        keyInputLeftArrow: string;
+        keyInputRightArrow: string;
+    };
+    STYLE_VARIABLES: {
+        componentSizeNormal: number;
+        navigationTabBarSize: number;
+        receiptPreviewMaxWidth: number;
+    };
+    EXPENSIFY_ACCOUNT_IDS: {
+        ACCOUNTING: number;
+        ACCOUNTS_PAYABLE: number;
+        ADMIN: number;
+        BILLS: number;
+        CHRONOS: number;
+        CONCIERGE: number;
+        CONTRIBUTORS: number;
+        FIRST_RESPONDER: number;
+        HELP: number;
+        INTEGRATION_TESTING_CREDS: number;
+        NOTIFICATIONS: number;
+        PAYROLL: number;
+        QA: number;
+        QA_TRAVIS: number;
+        RECEIPTS: number;
+        REWARDS: number;
+        STUDENT_AMBASSADOR: number;
+        SVFG: number;
+        QA_GUIDE: number;
+    };
+    SEARCH_SNAPSHOT_ONYX_KEYS: readonly string[];
+    EXCLUDE_FROM_LAST_VISITED_PATH: readonly string[];
+};
+
+const CONST_RUNTIME_DEFAULTS: ConstRuntime = {
+    NEW_EXPENSIFY_URL: 'https://new.expensify.com/',
+    KEY_COMMANDS: {
+        keyModifierControl: 'keyModifierControl',
+        keyModifierCommand: 'keyModifierCommand',
+        keyModifierShift: 'keyModifierShift',
+        keyModifierShiftControl: 'keyModifierShiftControl',
+        keyModifierShiftCommand: 'keyModifierShiftCommand',
+        keyInputEscape: 'keyInputEscape',
+        keyInputEnter: 'keyInputEnter',
+        keyInputUpArrow: 'keyInputUpArrow',
+        keyInputDownArrow: 'keyInputDownArrow',
+        keyInputLeftArrow: 'keyInputLeftArrow',
+        keyInputRightArrow: 'keyInputRightArrow',
+    },
+    STYLE_VARIABLES: {
+        componentSizeNormal: 40,
+        navigationTabBarSize: 72,
+        receiptPreviewMaxWidth: 440,
+    },
+    EXPENSIFY_ACCOUNT_IDS: {
+        ACCOUNTING: 9645353,
+        ACCOUNTS_PAYABLE: 10903701,
+        ADMIN: -1,
+        BILLS: 1371,
+        CHRONOS: 10027416,
+        CONCIERGE: 8392101,
+        CONTRIBUTORS: 9675014,
+        FIRST_RESPONDER: 9375152,
+        HELP: -1,
+        INTEGRATION_TESTING_CREDS: -1,
+        NOTIFICATIONS: 11665625,
+        PAYROLL: 9679724,
+        QA: 3126513,
+        QA_TRAVIS: 8595733,
+        RECEIPTS: -1,
+        REWARDS: 11023767,
+        STUDENT_AMBASSADOR: 10476956,
+        SVFG: 2012843,
+        QA_GUIDE: 14365522,
+    },
+    SEARCH_SNAPSHOT_ONYX_KEYS: ['report_', 'policy_', 'transactions_', 'transactionViolations_', 'reportActions_', 'personalDetailsList', 'reportNameValuePairs_'],
+    EXCLUDE_FROM_LAST_VISITED_PATH: [
+        'not-found',
+        'SAMLSignIn',
+        'ValidateLogin',
+        'Dynamic_MigratedUserWelcomeModal_Root',
+        'Dynamic_SubmitPlanWelcomeModal_Root',
+        'Dynamic_AIFeaturesPromoModal_Root',
+        'Money_Request_Step_Scan',
+        'Members_Move_To_Group',
+        'Multifactor_Authentication_Validate_Code',
+        'Multifactor_Authentication_Outcome_Success',
+        'Multifactor_Authentication_Outcome_Failure',
+        'Multifactor_Authentication_Prompt',
+        'Multifactor_Authentication_Revoke',
+        'Multifactor_Authentication_Authorize_Transaction',
+    ],
+};
+
+export default CONST_RUNTIME_DEFAULTS;
+export type {ConstRuntime};
diff --git a/src/languages/TranslationTypes.ts b/src/languages/TranslationTypes.ts
new file mode 100644
index 000000000000..c155756e0f85
--- /dev/null
+++ b/src/languages/TranslationTypes.ts
@@ -0,0 +1,93 @@
+import type CONST from '@src/CONST';
+import type DeepValueOf from '@src/types/utils/DeepValueOf';
+
+import type {ValueOf} from 'type-fest';
+
+type Country = keyof typeof CONST.ALL_COUNTRIES;
+
+type OnboardingTaskLinks = Partial<{
+    onboardingCompanySize: ValueOf<typeof CONST.ONBOARDING_COMPANY_SIZE>;
+    integrationName: string;
+    workspaceSettingsLink: string;
+    workspaceCategoriesLink: string;
+    workspaceTagsLink: string;
+    workspaceMoreFeaturesLink: string;
+    workspaceMembersLink: string;
+    workspaceAccountingLink: string;
+    workspaceConfirmationLink: string;
+    testDriveURL: string;
+    corporateCardLink: string;
+}>;
+
+type OnboardingTask = {
+    type: ValueOf<typeof CONST.ONBOARDING_TASK_TYPE>;
+    autoCompleted: boolean;
+    title: string | ((params: OnboardingTaskLinks) => string);
+    description: string | ((params: OnboardingTaskLinks) => string);
+};
+
+type ReportAction = {
+    reportActionID: string;
+    actionName: DeepValueOf<typeof CONST.REPORT.ACTIONS.TYPE>;
+    created: string;
+};
+
+type OnyxInputOrEntry<TOnyxValue> = TOnyxValue | null | undefined;
+
+type OriginalMessageReportPreview = {
+    linkedReportID: string;
+    whisperedTo?: number[];
+};
+
+type OriginalMessageSettlementAccountLocked = {
+    maskedBankAccountNumber: string;
+    policyID: string;
+};
+
+type PolicyRuleTaxRate = {
+    externalID: string;
+    value: string;
+    name: string;
+};
+
+type PolicyRulesModifiedFields = {
+    merchant?: string;
+    category?: string;
+    tag?: string;
+    comment?: string;
+    description?: string;
+    billable?: boolean;
+    reimbursable?: boolean;
+    tax?: {
+        // eslint-disable-next-line @typescript-eslint/naming-convention
+        field_id_TAX: PolicyRuleTaxRate;
+    };
+};
+
+type PersonalRulesModifiedFields = PolicyRulesModifiedFields & {
+    reportName?: string;
+};
+
+type ConnectionName = ValueOf<typeof CONST.POLICY.CONNECTIONS.NAME>;
+type AllConnectionName = ConnectionName;
+type PolicyConnectionSyncStage = ValueOf<typeof CONST.POLICY.CONNECTIONS.SYNC_STAGE_NAME>;
+type SageIntacctMappingName = ValueOf<typeof CONST.SAGE_INTACCT_CONFIG.MAPPINGS>;
+type DelegateRole = ValueOf<typeof CONST.DELEGATE_ROLE>;
+type ViolationDataType = ValueOf<typeof CONST.MODIFIED_AMOUNT_VIOLATION_DATA>;
+
+export type {
+    AllConnectionName,
+    ConnectionName,
+    Country,
+    DelegateRole,
+    OnboardingTask,
+    OnyxInputOrEntry,
+    OriginalMessageReportPreview,
+    OriginalMessageSettlementAccountLocked,
+    PersonalRulesModifiedFields,
+    PolicyConnectionSyncStage,
+    PolicyRulesModifiedFields,
+    ReportAction,
+    SageIntacctMappingName,
+    ViolationDataType,
+};
diff --git a/src/languages/de.ts b/src/languages/de.ts
index c5a95fd86d98..d8518c4d5571 100644
--- a/src/languages/de.ts
+++ b/src/languages/de.ts
@@ -10,14 +10,13 @@
  * - Improve context annotations in src/languages/en.ts
  */
 import type {OnboardingTask} from '@libs/actions/Welcome/OnboardingFlow';
-import StringUtils from '@libs/StringUtils';
+import startsWithVowel from '@libs/StringUtils/startsWithVowel';
 
 import CONST from '@src/CONST';
 import type {Country} from '@src/CONST';
 import type {OnyxInputOrEntry, ReportAction} from '@src/types/onyx';
 import type {DelegateRole} from '@src/types/onyx/Account';
-import type OriginalMessage from '@src/types/onyx/OriginalMessage';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
+import type {OriginalMessageReportPreview, OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
 import type {AllConnectionName, ConnectionName, PolicyConnectionSyncStage, SageIntacctMappingName} from '@src/types/onyx/Policy';
 import type {ViolationDataType} from '@src/types/onyx/TransactionViolation';
 
@@ -1542,7 +1541,7 @@ const translations: TranslationDeepObject<typeof en> = {
         basedOnAI: 'basierend auf bisherigen Aktivitäten',
         basedOnMCC: ({rulesLink}: {rulesLink: string}) => (rulesLink ? `basierend auf den <a href="${rulesLink}">Workspace-Regeln</a>` : 'basierend auf dem Workspace-Regelwerk'),
         threadExpenseReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} ${comment ? `für ${comment}` : 'Ausgabe'}`,
-        invoiceReportName: ({linkedReportID}: OriginalMessage<typeof CONST.REPORT.ACTIONS.TYPE.REPORT_PREVIEW>) => `Rechnungsbericht Nr. ${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `Rechnungsbericht Nr. ${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} gesendet${comment ? `für ${comment}` : ''}`,
         movedFromPersonalSpace: (reportName?: string, workspaceName?: string) => `Ausgabe von persönlichem Bereich nach ${workspaceName ?? `Chat mit ${reportName}`} verschoben`,
         movedToPersonalSpace: 'Ausgabe in persönlichen Bereich verschoben',
@@ -1866,7 +1865,7 @@ const translations: TranslationDeepObject<typeof en> = {
             pageTitle: 'Wählen Sie die Details aus, die Sie behalten möchten:',
             noDifferences: 'Keine Unterschiede zwischen den Transaktionen gefunden',
             pleaseSelectError: ({field}: {field: string}) => {
-                const article = StringUtils.startsWithVowel(field) ? 'an' : 'a';
+                const article = startsWithVowel(field) ? 'an' : 'eine';
                 return `Bitte wählen Sie ${article} ${field} aus`;
             },
             pleaseSelectAttendees: 'Bitte wählen Sie Teilnehmende aus',
diff --git a/src/languages/el.ts b/src/languages/el.ts
index fa9475245423..11ab71370c74 100644
--- a/src/languages/el.ts
+++ b/src/languages/el.ts
@@ -10,12 +10,11 @@
  * - Improve context annotations in src/languages/en.ts
  */
 import type {OnboardingTask} from '@libs/actions/Welcome/OnboardingFlow';
-import StringUtils from '@libs/StringUtils';
+import startsWithVowel from '@libs/StringUtils/startsWithVowel';
 
 import CONST from '@src/CONST';
 import type {Country} from '@src/CONST';
-import type OriginalMessage from '@src/types/onyx/OriginalMessage';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
+import type {OriginalMessageReportPreview, OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
 
 import type {ValueOf} from 'type-fest';
 
@@ -1265,7 +1264,6 @@ const translations: TranslationDeepObject<typeof en> = {
             if (count === 0) {
                 return duplicates > 0 ? 'Δεν προστέθηκαν κανόνες εμπόρων, καθώς υπάρχουν ήδη όλοι.' : 'Δεν έχουν προστεθεί κανόνες εμπόρου.';
             }
-
             return {
                 one: 'Προστέθηκε 1 κανόνας εμπόρου.',
                 other: `Έχουν προστεθεί ${count} κανόνες εμπόρων.`,
@@ -1597,7 +1595,7 @@ const translations: TranslationDeepObject<typeof en> = {
         basedOnAI: 'βάσει προηγούμενης δραστηριότητας',
         basedOnMCC: ({rulesLink}: {rulesLink: string}) => (rulesLink ? `βάσει των <a href="${rulesLink}">κανόνων του χώρου εργασίας</a>` : 'βάσει κανόνα χώρου εργασίας'),
         threadExpenseReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} ${comment ? `για ${comment}` : 'δαπάνη'}`,
-        invoiceReportName: ({linkedReportID}: OriginalMessage<typeof CONST.REPORT.ACTIONS.TYPE.REPORT_PREVIEW>) => `Αναφορά τιμολογίου #${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `Αναφορά τιμολογίου #${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount: string, comment?: string) => `στάλθηκαν ${formattedAmount}${comment ? `για ${comment}` : ''}`,
         movedFromPersonalSpace: (reportName, workspaceName) => `μετακινήθηκε η δαπάνη από τον προσωπικό χώρο στο ${workspaceName ?? `συνομιλήστε με τον/την ${reportName}`}`,
         movedToPersonalSpace: 'μετακινήθηκε η δαπάνη στον προσωπικό χώρο',
@@ -1916,7 +1914,7 @@ const translations: TranslationDeepObject<typeof en> = {
             pageTitle: 'Επιλέξτε τις λεπτομέρειες που θέλετε να διατηρήσετε:',
             noDifferences: 'Δεν βρέθηκαν διαφορές μεταξύ των συναλλαγών',
             pleaseSelectError: ({field}: {field: string}) => {
-                const article = StringUtils.startsWithVowel(field) ? 'ένα' : 'α';
+                const article = startsWithVowel(field) ? 'ένα' : 'α';
                 return `Παρακαλούμε επιλέξτε ${article} ${field}`;
             },
             pleaseSelectAttendees: 'Παρακαλώ επιλέξτε συμμετέχοντες',
diff --git a/src/languages/en.ts b/src/languages/en.ts
index f7753748e0a3..054df710877e 100644
--- a/src/languages/en.ts
+++ b/src/languages/en.ts
@@ -1,14 +1,6 @@
-import type {OnboardingTask} from '@libs/actions/Welcome/OnboardingFlow';
-import StringUtils from '@libs/StringUtils';
+import startsWithVowel from '@libs/StringUtils/startsWithVowel';
 
 import CONST from '@src/CONST';
-import type {Country} from '@src/CONST';
-import type {OnyxInputOrEntry, ReportAction} from '@src/types/onyx';
-import type {DelegateRole} from '@src/types/onyx/Account';
-import type OriginalMessage from '@src/types/onyx/OriginalMessage';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
-import type {AllConnectionName, ConnectionName, PolicyConnectionSyncStage, SageIntacctMappingName} from '@src/types/onyx/Policy';
-import type {ViolationDataType} from '@src/types/onyx/TransactionViolation';
 
 import type {ValueOf} from 'type-fest';
 
@@ -16,6 +8,22 @@ import {CONST as COMMON_CONST, Str} from 'expensify-common';
 import startCase from 'lodash/startCase';
 
 import type {ExportAgainModalDescriptionParams, ExportIntegrationSelectedParams} from './params';
+import type {
+    AllConnectionName,
+    ConnectionName,
+    Country,
+    DelegateRole,
+    OnboardingTask,
+    OnyxInputOrEntry,
+    OriginalMessageReportPreview,
+    OriginalMessageSettlementAccountLocked,
+    PersonalRulesModifiedFields,
+    PolicyConnectionSyncStage,
+    PolicyRulesModifiedFields,
+    ReportAction,
+    SageIntacctMappingName,
+    ViolationDataType,
+} from './TranslationTypes';
 import type {TranslationDeepObject} from './types';
 
 type StateValue = {
@@ -1615,7 +1623,7 @@ const translations = {
         basedOnAI: 'based on past activity',
         basedOnMCC: ({rulesLink}: {rulesLink: string}) => (rulesLink ? `based on <a href="${rulesLink}">workspace rules</a>` : 'based on workspace rule'),
         threadExpenseReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} ${comment ? `for ${comment}` : 'expense'}`,
-        invoiceReportName: ({linkedReportID}: OriginalMessage<typeof CONST.REPORT.ACTIONS.TYPE.REPORT_PREVIEW>) => `Invoice Report #${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `Invoice Report #${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} sent${comment ? ` for ${comment}` : ''}`,
         movedFromPersonalSpace: (reportName?: string, workspaceName?: string) => `moved expense from personal space to ${workspaceName ?? `chat with ${reportName}`}`,
         movedToPersonalSpace: 'moved expense to personal space',
@@ -1926,7 +1934,7 @@ const translations = {
             pageTitle: 'Select the details you want to keep:',
             noDifferences: 'No differences found between the transactions',
             pleaseSelectError: ({field}: {field: string}) => {
-                const article = StringUtils.startsWithVowel(field) ? 'an' : 'a';
+                const article = startsWithVowel(field) ? 'an' : 'a';
                 return `Please select ${article} ${field}`;
             },
             pleaseSelectAttendees: 'Please select attendees',
diff --git a/src/languages/es.ts b/src/languages/es.ts
index f90ba1f6dc78..655ed5d29da6 100644
--- a/src/languages/es.ts
+++ b/src/languages/es.ts
@@ -9,8 +9,9 @@
  * - Improve the prompts in prompts/translation, or
  * - Improve context annotations in src/languages/en.ts
  */
+
 import CONST from '@src/CONST';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
+import type {OriginalMessageReportPreview, OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
 
 import {CONST as COMMON_CONST, Str} from 'expensify-common';
 
@@ -1189,7 +1190,6 @@ const translations: TranslationDeepObject<typeof en> = {
             if (count === 0) {
                 return duplicates > 0 ? 'No se han añadido reglas de comerciante, ya que todas ya existen.' : 'No se han añadido reglas de comerciante.';
             }
-
             return {
                 one: 'Se ha añadido 1 regla de comerciante.',
                 other: `Se han añadido ${count} reglas de comerciante.`,
@@ -1540,7 +1540,7 @@ const translations: TranslationDeepObject<typeof en> = {
         basedOnAI: 'basado en actividad pasada',
         basedOnMCC: ({rulesLink}: {rulesLink: string}) => (rulesLink ? `basado en <a href="${rulesLink}">reglas del espacio de trabajo</a>` : 'basado en regla del espacio de trabajo'),
         threadExpenseReportName: (formattedAmount, comment) => `${comment ? `${formattedAmount} para ${comment}` : `Gasto de ${formattedAmount}`}`,
-        invoiceReportName: ({linkedReportID}) => `Informe de facturación #${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `Informe de factura n.º ${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount, comment) => `${formattedAmount} enviado${comment ? ` para ${comment}` : ''}`,
         movedFromPersonalSpace: (reportName, workspaceName) => `movió el gasto desde su espacio personal a ${workspaceName ?? `un chat con ${reportName}`}`,
         movedToPersonalSpace: 'movió el gasto a su espacio personal',
@@ -1852,7 +1852,9 @@ const translations: TranslationDeepObject<typeof en> = {
             header: 'Selecciona los detalles',
             pageTitle: 'Selecciona los detalles que deseas conservar:',
             noDifferences: 'No se encontraron diferencias entre las transacciones',
-            pleaseSelectError: ({field}) => `Por favor, selecciona un(a) ${field}`,
+            pleaseSelectError: ({field}: {field: string}) => {
+                return `Por favor, selecciona un(a) ${field}`;
+            },
             pleaseSelectAttendees: 'Por favor, selecciona asistentes',
             selectAllDetailsError: 'Selecciona todos los detalles antes de continuar.',
         },
diff --git a/src/languages/fr.ts b/src/languages/fr.ts
index 38c034a3cef3..f84f7aa8f21b 100644
--- a/src/languages/fr.ts
+++ b/src/languages/fr.ts
@@ -10,14 +10,13 @@
  * - Improve context annotations in src/languages/en.ts
  */
 import type {OnboardingTask} from '@libs/actions/Welcome/OnboardingFlow';
-import StringUtils from '@libs/StringUtils';
+import startsWithVowel from '@libs/StringUtils/startsWithVowel';
 
 import CONST from '@src/CONST';
 import type {Country} from '@src/CONST';
 import type {OnyxInputOrEntry, ReportAction} from '@src/types/onyx';
 import type {DelegateRole} from '@src/types/onyx/Account';
-import type OriginalMessage from '@src/types/onyx/OriginalMessage';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
+import type {OriginalMessageReportPreview, OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
 import type {AllConnectionName, ConnectionName, PolicyConnectionSyncStage, SageIntacctMappingName} from '@src/types/onyx/Policy';
 import type {ViolationDataType} from '@src/types/onyx/TransactionViolation';
 
@@ -1546,7 +1545,7 @@ const translations: TranslationDeepObject<typeof en> = {
         basedOnMCC: ({rulesLink}: {rulesLink: string}) =>
             rulesLink ? `en fonction des <a href="${rulesLink}">règles de l’espace de travail</a>` : 'en fonction de la règle de l’espace de travail',
         threadExpenseReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} ${comment ? `pour ${comment}` : 'dépense'}`,
-        invoiceReportName: ({linkedReportID}: OriginalMessage<typeof CONST.REPORT.ACTIONS.TYPE.REPORT_PREVIEW>) => `Note de frais de facture n° ${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `Note de frais de facture n° ${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} envoyé${comment ? `pour ${comment}` : ''}`,
         movedFromPersonalSpace: (reportName?: string, workspaceName?: string) => `a déplacé la dépense de l’espace personnel vers ${workspaceName ?? `discuter avec ${reportName}`}`,
         movedToPersonalSpace: 'a déplacé la dépense vers l’espace personnel',
@@ -1872,7 +1871,7 @@ const translations: TranslationDeepObject<typeof en> = {
             pageTitle: 'Sélectionnez les détails que vous souhaitez conserver :',
             noDifferences: 'Aucune différence trouvée entre les transactions',
             pleaseSelectError: ({field}: {field: string}) => {
-                const article = StringUtils.startsWithVowel(field) ? 'un' : 'un';
+                const article = startsWithVowel(field) ? 'un' : 'un';
                 return `Veuillez sélectionner ${article} ${field}`;
             },
             pleaseSelectAttendees: 'Veuillez sélectionner les participants',
diff --git a/src/languages/it.ts b/src/languages/it.ts
index 87a38c608105..9b5d6c84244e 100644
--- a/src/languages/it.ts
+++ b/src/languages/it.ts
@@ -10,14 +10,13 @@
  * - Improve context annotations in src/languages/en.ts
  */
 import type {OnboardingTask} from '@libs/actions/Welcome/OnboardingFlow';
-import StringUtils from '@libs/StringUtils';
+import startsWithVowel from '@libs/StringUtils/startsWithVowel';
 
 import CONST from '@src/CONST';
 import type {Country} from '@src/CONST';
 import type {OnyxInputOrEntry, ReportAction} from '@src/types/onyx';
 import type {DelegateRole} from '@src/types/onyx/Account';
-import type OriginalMessage from '@src/types/onyx/OriginalMessage';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
+import type {OriginalMessageReportPreview, OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
 import type {AllConnectionName, ConnectionName, PolicyConnectionSyncStage, SageIntacctMappingName} from '@src/types/onyx/Policy';
 import type {ViolationDataType} from '@src/types/onyx/TransactionViolation';
 
@@ -1540,7 +1539,7 @@ const translations: TranslationDeepObject<typeof en> = {
         basedOnAI: 'in base all’attività precedente',
         basedOnMCC: ({rulesLink}: {rulesLink: string}) => (rulesLink ? `in base alle <a href="${rulesLink}">regole dello spazio di lavoro</a>` : 'in base alle regole della workspace'),
         threadExpenseReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} ${comment ? `per ${comment}` : 'spesa'}`,
-        invoiceReportName: ({linkedReportID}: OriginalMessage<typeof CONST.REPORT.ACTIONS.TYPE.REPORT_PREVIEW>) => `Report fattura n. ${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `Report fattura n. ${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} inviato${comment ? `per ${comment}` : ''}`,
         movedFromPersonalSpace: (reportName?: string, workspaceName?: string) => `ha spostato la spesa dallo spazio personale a ${workspaceName ?? `chatta con ${reportName}`}`,
         movedToPersonalSpace: 'ha spostato la spesa nello spazio personale',
@@ -1863,7 +1862,7 @@ const translations: TranslationDeepObject<typeof en> = {
             pageTitle: 'Seleziona i dettagli che vuoi mantenere:',
             noDifferences: 'Nessuna differenza trovata tra le transazioni',
             pleaseSelectError: ({field}: {field: string}) => {
-                const article = StringUtils.startsWithVowel(field) ? 'un' : 'a';
+                const article = startsWithVowel(field) ? 'un' : 'a';
                 return `Seleziona ${article} ${field}`;
             },
             pleaseSelectAttendees: 'Seleziona i partecipanti',
diff --git a/src/languages/ja.ts b/src/languages/ja.ts
index fdb22137b305..824cfbc79882 100644
--- a/src/languages/ja.ts
+++ b/src/languages/ja.ts
@@ -10,14 +10,13 @@
  * - Improve context annotations in src/languages/en.ts
  */
 import type {OnboardingTask} from '@libs/actions/Welcome/OnboardingFlow';
-import StringUtils from '@libs/StringUtils';
+import startsWithVowel from '@libs/StringUtils/startsWithVowel';
 
 import CONST from '@src/CONST';
 import type {Country} from '@src/CONST';
 import type {OnyxInputOrEntry, ReportAction} from '@src/types/onyx';
 import type {DelegateRole} from '@src/types/onyx/Account';
-import type OriginalMessage from '@src/types/onyx/OriginalMessage';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
+import type {OriginalMessageReportPreview, OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
 import type {AllConnectionName, ConnectionName, PolicyConnectionSyncStage, SageIntacctMappingName} from '@src/types/onyx/Policy';
 import type {ViolationDataType} from '@src/types/onyx/TransactionViolation';
 
@@ -1521,7 +1520,7 @@ const translations: TranslationDeepObject<typeof en> = {
         basedOnAI: '過去のアクティビティに基づく',
         basedOnMCC: ({rulesLink}: {rulesLink: string}) => (rulesLink ? `<a href="${rulesLink}">ワークスペースルール</a>に基づく` : 'ワークスペースのルールに基づく'),
         threadExpenseReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} ${comment ? `${comment} 用` : '経費'}`,
-        invoiceReportName: ({linkedReportID}: OriginalMessage<typeof CONST.REPORT.ACTIONS.TYPE.REPORT_PREVIEW>) => `請求書レポート #${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `請求書レポート #${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} を送信済み${comment ? `${comment}用` : ''}`,
         movedFromPersonalSpace: (reportName?: string, workspaceName?: string) => `経費を個人スペースから${workspaceName ?? `${reportName}とチャット`}に移動しました`,
         movedToPersonalSpace: '経費を個人スペースに移動しました',
@@ -1841,8 +1840,8 @@ const translations: TranslationDeepObject<typeof en> = {
             pageTitle: '保持したい詳細を選択してください:',
             noDifferences: '取引間に差異は見つかりませんでした',
             pleaseSelectError: ({field}: {field: string}) => {
-                const article = StringUtils.startsWithVowel(field) ? 'ある' : 'a';
-                return `${article} の${field}を選択してください`;
+                const article = startsWithVowel(field) ? '1つの' : 'a';
+                return `${article} ${field} を選択してください`;
             },
             pleaseSelectAttendees: '出席者を選択してください',
             selectAllDetailsError: '続行する前にすべての詳細を選択してください。',
@@ -9024,9 +9023,6 @@ ${reportName}`,
             reject: '却下',
             duplicateExpense: () => ({
                 one: '経費を複製',
-                // Japanese has no grammatical plural, so `Intl.PluralRules` selects `other` for every count,
-                // including 1. The single/bulk distinction here is semantic rather than grammatical, so `other`
-                // branches on the count itself to keep 一括 (bulk) on the multi-expense action only.
                 other: (count: number) => (count === 1 ? '経費を複製' : '経費を一括複製'),
             }),
             noOptionsAvailable: '選択した経費グループには利用できるオプションがありません。',
diff --git a/src/languages/nl.ts b/src/languages/nl.ts
index b20d5623514f..b8910e304fd7 100644
--- a/src/languages/nl.ts
+++ b/src/languages/nl.ts
@@ -10,14 +10,13 @@
  * - Improve context annotations in src/languages/en.ts
  */
 import type {OnboardingTask} from '@libs/actions/Welcome/OnboardingFlow';
-import StringUtils from '@libs/StringUtils';
+import startsWithVowel from '@libs/StringUtils/startsWithVowel';
 
 import CONST from '@src/CONST';
 import type {Country} from '@src/CONST';
 import type {OnyxInputOrEntry, ReportAction} from '@src/types/onyx';
 import type {DelegateRole} from '@src/types/onyx/Account';
-import type OriginalMessage from '@src/types/onyx/OriginalMessage';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
+import type {OriginalMessageReportPreview, OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
 import type {AllConnectionName, ConnectionName, PolicyConnectionSyncStage, SageIntacctMappingName} from '@src/types/onyx/Policy';
 import type {ViolationDataType} from '@src/types/onyx/TransactionViolation';
 
@@ -1538,7 +1537,7 @@ const translations: TranslationDeepObject<typeof en> = {
         basedOnAI: 'op basis van eerdere activiteit',
         basedOnMCC: ({rulesLink}: {rulesLink: string}) => (rulesLink ? `op basis van <a href="${rulesLink}">werkruimteregels</a>` : 'op basis van werkruimteregel'),
         threadExpenseReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} ${comment ? `voor ${comment}` : 'uitgave'}`,
-        invoiceReportName: ({linkedReportID}: OriginalMessage<typeof CONST.REPORT.ACTIONS.TYPE.REPORT_PREVIEW>) => `Factuurrapport nr. ${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `Factuurrapport nr. ${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} verzonden${comment ? `voor ${comment}` : ''}`,
         movedFromPersonalSpace: (reportName?: string, workspaceName?: string) => `heeft uitgave verplaatst van persoonlijke ruimte naar ${workspaceName ?? `chat met ${reportName}`}`,
         movedToPersonalSpace: 'heeft uitgave verplaatst naar persoonlijke ruimte',
@@ -1858,8 +1857,8 @@ const translations: TranslationDeepObject<typeof en> = {
             pageTitle: 'Selecteer de details die je wilt behouden:',
             noDifferences: 'Geen verschillen gevonden tussen de transacties',
             pleaseSelectError: ({field}: {field: string}) => {
-                const article = StringUtils.startsWithVowel(field) ? 'een' : 'een';
-                return `Selecteer ${article} ${field}`;
+                const article = startsWithVowel(field) ? 'een' : 'een';
+                return `Selecteer alsjeblieft ${article} ${field}`;
             },
             pleaseSelectAttendees: 'Selecteer aanwezigen',
             selectAllDetailsError: 'Selecteer alle details voordat je verdergaat.',
diff --git a/src/languages/params.ts b/src/languages/params.ts
index cdae2871706a..bde06b208cd8 100644
--- a/src/languages/params.ts
+++ b/src/languages/params.ts
@@ -1,4 +1,4 @@
-import type {ConnectionName} from '@src/types/onyx/Policy';
+import type {ConnectionName} from './TranslationTypes';
 
 type StepCounterParams = {step: number; total?: number; text?: string};
 
diff --git a/src/languages/pl.ts b/src/languages/pl.ts
index 7055403c8e4d..ff689acb9e96 100644
--- a/src/languages/pl.ts
+++ b/src/languages/pl.ts
@@ -10,14 +10,13 @@
  * - Improve context annotations in src/languages/en.ts
  */
 import type {OnboardingTask} from '@libs/actions/Welcome/OnboardingFlow';
-import StringUtils from '@libs/StringUtils';
+import startsWithVowel from '@libs/StringUtils/startsWithVowel';
 
 import CONST from '@src/CONST';
 import type {Country} from '@src/CONST';
 import type {OnyxInputOrEntry, ReportAction} from '@src/types/onyx';
 import type {DelegateRole} from '@src/types/onyx/Account';
-import type OriginalMessage from '@src/types/onyx/OriginalMessage';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
+import type {OriginalMessageReportPreview, OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
 import type {AllConnectionName, ConnectionName, PolicyConnectionSyncStage, SageIntacctMappingName} from '@src/types/onyx/Policy';
 import type {ViolationDataType} from '@src/types/onyx/TransactionViolation';
 
@@ -1567,7 +1566,7 @@ const translations: TranslationDeepObject<typeof en> = {
         basedOnAI: 'na podstawie dotychczasowej aktywności',
         basedOnMCC: ({rulesLink}: {rulesLink: string}) => (rulesLink ? `na podstawie <a href="${rulesLink}">zasad przestrzeni roboczej</a>` : 'na podstawie reguły przestrzeni roboczej'),
         threadExpenseReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} ${comment ? `dla ${comment}` : 'wydatek'}`,
-        invoiceReportName: ({linkedReportID}: OriginalMessage<typeof CONST.REPORT.ACTIONS.TYPE.REPORT_PREVIEW>) => `Raport faktury nr ${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `Raport faktury nr ${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount: string, comment?: string) => `Wysłano ${formattedAmount}${comment ? `za ${comment}` : ''}`,
         movedFromPersonalSpace: (reportName?: string, workspaceName?: string) => `przeniesiono wydatek z przestrzeni osobistej do ${workspaceName ?? `czat z ${reportName}`}`,
         movedToPersonalSpace: 'przeniesiono wydatek do przestrzeni prywatnej',
@@ -1890,7 +1889,7 @@ const translations: TranslationDeepObject<typeof en> = {
             pageTitle: 'Wybierz szczegóły, które chcesz zachować:',
             noDifferences: 'Nie znaleziono różnic między transakcjami',
             pleaseSelectError: ({field}: {field: string}) => {
-                const article = StringUtils.startsWithVowel(field) ? 'włączony' : 'a';
+                const article = startsWithVowel(field) ? 'jeden' : 'a';
                 return `Wybierz ${article} ${field}`;
             },
             pleaseSelectAttendees: 'Wybierz uczestników',
diff --git a/src/languages/pt-BR.ts b/src/languages/pt-BR.ts
index b72a7b75bbb5..c721d02f4449 100644
--- a/src/languages/pt-BR.ts
+++ b/src/languages/pt-BR.ts
@@ -10,14 +10,13 @@
  * - Improve context annotations in src/languages/en.ts
  */
 import type {OnboardingTask} from '@libs/actions/Welcome/OnboardingFlow';
-import StringUtils from '@libs/StringUtils';
+import startsWithVowel from '@libs/StringUtils/startsWithVowel';
 
 import CONST from '@src/CONST';
 import type {Country} from '@src/CONST';
 import type {OnyxInputOrEntry, ReportAction} from '@src/types/onyx';
 import type {DelegateRole} from '@src/types/onyx/Account';
-import type OriginalMessage from '@src/types/onyx/OriginalMessage';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
+import type {OriginalMessageReportPreview, OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
 import type {AllConnectionName, ConnectionName, PolicyConnectionSyncStage, SageIntacctMappingName} from '@src/types/onyx/Policy';
 import type {ViolationDataType} from '@src/types/onyx/TransactionViolation';
 
@@ -1537,7 +1536,7 @@ const translations: TranslationDeepObject<typeof en> = {
         basedOnAI: 'com base na atividade anterior',
         basedOnMCC: ({rulesLink}: {rulesLink: string}) => (rulesLink ? `com base nas <a href="${rulesLink}">regras do workspace</a>` : 'com base na regra do workspace'),
         threadExpenseReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} ${comment ? `para ${comment}` : 'despesa'}`,
-        invoiceReportName: ({linkedReportID}: OriginalMessage<typeof CONST.REPORT.ACTIONS.TYPE.REPORT_PREVIEW>) => `Relatório de fatura nº ${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `Relatório de fatura nº ${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} enviado${comment ? `para ${comment}` : ''}`,
         movedFromPersonalSpace: (reportName?: string, workspaceName?: string) => `moveu a despesa do espaço pessoal para ${workspaceName ?? `conversar com ${reportName}`}`,
         movedToPersonalSpace: 'moveu a despesa para o espaço pessoal',
@@ -1853,7 +1852,7 @@ const translations: TranslationDeepObject<typeof en> = {
             pageTitle: 'Selecione os detalhes que você quer manter:',
             noDifferences: 'Nenhuma diferença encontrada entre as transações',
             pleaseSelectError: ({field}: {field: string}) => {
-                const article = StringUtils.startsWithVowel(field) ? 'um' : 'a';
+                const article = startsWithVowel(field) ? 'um' : 'um';
                 return `Selecione ${article} ${field}`;
             },
             pleaseSelectAttendees: 'Selecione participantes',
diff --git a/src/languages/zh-hans.ts b/src/languages/zh-hans.ts
index 4ebbb34297b9..7c961fe952c9 100644
--- a/src/languages/zh-hans.ts
+++ b/src/languages/zh-hans.ts
@@ -10,14 +10,13 @@
  * - Improve context annotations in src/languages/en.ts
  */
 import type {OnboardingTask} from '@libs/actions/Welcome/OnboardingFlow';
-import StringUtils from '@libs/StringUtils';
+import startsWithVowel from '@libs/StringUtils/startsWithVowel';
 
 import CONST from '@src/CONST';
 import type {Country} from '@src/CONST';
 import type {OnyxInputOrEntry, ReportAction} from '@src/types/onyx';
 import type {DelegateRole} from '@src/types/onyx/Account';
-import type OriginalMessage from '@src/types/onyx/OriginalMessage';
-import type {OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
+import type {OriginalMessageReportPreview, OriginalMessageSettlementAccountLocked, PersonalRulesModifiedFields, PolicyRulesModifiedFields} from '@src/types/onyx/OriginalMessage';
 import type {AllConnectionName, ConnectionName, PolicyConnectionSyncStage, SageIntacctMappingName} from '@src/types/onyx/Policy';
 import type {ViolationDataType} from '@src/types/onyx/TransactionViolation';
 
@@ -1479,7 +1478,7 @@ const translations: TranslationDeepObject<typeof en> = {
         basedOnAI: '基于过去的活动',
         basedOnMCC: ({rulesLink}: {rulesLink: string}) => (rulesLink ? `基于<a href="${rulesLink}">工作区规则</a>` : '基于工作区规则'),
         threadExpenseReportName: (formattedAmount: string, comment?: string) => `${formattedAmount} ${comment ? `用于 ${comment}` : '报销'}`,
-        invoiceReportName: ({linkedReportID}: OriginalMessage<typeof CONST.REPORT.ACTIONS.TYPE.REPORT_PREVIEW>) => `发票报告 #${linkedReportID}`,
+        invoiceReportName: ({linkedReportID}: OriginalMessageReportPreview) => `发票报表 #${linkedReportID}`,
         threadPaySomeoneReportName: (formattedAmount: string, comment?: string) => `已发送 ${formattedAmount}${comment ? `用于 ${comment}` : ''}`,
         movedFromPersonalSpace: (reportName?: string, workspaceName?: string) => `已将报销从个人空间移动到 ${workspaceName ?? `与 ${reportName} 聊天`}`,
         movedToPersonalSpace: '已将报销移动到个人空间',
@@ -1782,7 +1781,7 @@ const translations: TranslationDeepObject<typeof en> = {
             pageTitle: '选择要保留的详细信息：',
             noDifferences: '在这些交易之间未发现差异',
             pleaseSelectError: ({field}: {field: string}) => {
-                const article = StringUtils.startsWithVowel(field) ? '一个' : 'a';
+                const article = startsWithVowel(field) ? '一个' : '一个';
                 return `请选择${article}${field}`;
             },
             pleaseSelectAttendees: '请选择参会者',
diff --git a/src/libs/StringUtils/index.ts b/src/libs/StringUtils/index.ts
index 3831730c3fdd..08ca28e461a7 100644
--- a/src/libs/StringUtils/index.ts
+++ b/src/libs/StringUtils/index.ts
@@ -9,6 +9,7 @@ import deburr from 'lodash/deburr';
 
 import decodeUnicode from './decodeUnicode';
 import hash from './hash';
+import startsWithVowel from './startsWithVowel';
 
 /**
  * Removes diacritical marks and non-alphabetic and non-latin characters from a string.
@@ -202,15 +203,6 @@ function countWhiteSpaces(str: string): number {
     return (str.match(/\s/g) ?? []).length;
 }
 
-/**
- * Check if the string starts with a vowel
- * @param str - The input string
- * @returns True if the string starts with a vowel, false otherwise
- */
-function startsWithVowel(str: string): boolean {
-    return /^[aeiouAEIOU]/.test(str);
-}
-
 function camelToHyphenCase(str: string) {
     return str.replaceAll(/[A-Z]/g, (letter) => `-${letter.toLowerCase()}`);
 }
diff --git a/src/libs/StringUtils/startsWithVowel.ts b/src/libs/StringUtils/startsWithVowel.ts
new file mode 100644
index 000000000000..296bad53b598
--- /dev/null
+++ b/src/libs/StringUtils/startsWithVowel.ts
@@ -0,0 +1,6 @@
+/** Returns whether a string begins with an English vowel. */
+function startsWithVowel(str: string): boolean {
+    return /^[aeiouAEIOU]/.test(str);
+}
+
+export default startsWithVowel;
diff --git a/src/styles/theme/colors.ts b/src/styles/theme/colors.ts
index cf04f36b9636..adb9f5b4d5eb 100644
--- a/src/styles/theme/colors.ts
+++ b/src/styles/theme/colors.ts
@@ -1,10 +1,10 @@
-import type {Color} from './types';
-
 /**
  * DO NOT import colors.js into files. Use the theme switching hooks and HOCs instead.
  * For functional components, you can use the `useTheme` and `useThemeStyles` hooks
  * For class components, you can use the `withTheme` and `withThemeStyles` HOCs
  */
+type Color = string;
+
 const colors: Record<string, Color> = {
     // Brand Colors
     black: '#000000',
@@ -98,3 +98,4 @@ const colors: Record<string, Color> = {
 };
 
 export default colors;
+export type {Color};
diff --git a/src/styles/theme/types.ts b/src/styles/theme/types.ts
index f4a0ae9ac17b..d1a4f83d901a 100644
--- a/src/styles/theme/types.ts
+++ b/src/styles/theme/types.ts
@@ -5,8 +5,7 @@ import type CONST from '@src/CONST';
 import type {ValueOf} from 'type-fest';
 
 import type {ColorScheme, StatusBarStyle} from '..';
-
-type Color = string;
+import type {Color} from './colors';
 
 type ThemePreference = ValueOf<typeof CONST.THEME>;
 type ThemePreferenceWithoutSystem = Exclude<ThemePreference, typeof CONST.THEME.SYSTEM | typeof CONST.THEME.SYSTEM_CONTRAST>;
diff --git a/src/types/onyx/OriginalMessage.ts b/src/types/onyx/OriginalMessage.ts
index 41b3d6fc6f41..d624c3ded360 100644
--- a/src/types/onyx/OriginalMessage.ts
+++ b/src/types/onyx/OriginalMessage.ts
@@ -1851,6 +1851,7 @@ export default OriginalMessage;
 export type {
     DecisionName,
     OriginalMessageIOU,
+    OriginalMessageReportPreview,
     ChronosOOOEvent,
     PaymentMethodType,
     OriginalMessageSource,
diff --git a/tests/tooling/README.md b/tests/tooling/README.md
index 9a6e63c9164e..4642e9b9d732 100644
--- a/tests/tooling/README.md
+++ b/tests/tooling/README.md
@@ -71,19 +71,10 @@ Because `mock.module()` is hoisting-sensitive, files that use it import the modu
 
 ## Type-checking
 
-These files are type-checked by the root `tsconfig.json` along with everything else, so they see the app's real
-types. `bun:test` resolves because that config pulls in `node_modules/bun-types/test.d.ts` — the one file in
-bun-types that declares the module — through `files` rather than `include`, since `exclude` covers node_modules.
-
-The rest of bun-types is deliberately left out: its global JSX declarations are incompatible with the app's React
-types, and `generateTranslations.test.ts` reaches `src/` through the script it covers. One consequence is that
-`@types/jest`'s globals are visible here too, so a missing `bun:test` import can type-check but still fail at
-runtime — import every helper you use.
-
-`CIGitLogic.test.ts` is the exception. It uses Bun's `$` shell, which is a runtime API rather than a module
-declaration, so it needs the full `@types/bun`. Those types redeclare globals the app already owns — a `jest`
-namespace that shadows `@types/jest`'s generic signatures, and a `fetch` carrying `preconnect` — and adding them
-to the root project produces ~1,100 errors across `tests/unit`. So that one file is excluded from the root
-project and type-checked by `tests/tooling/tsconfig.json`, which mirrors what `server/tsconfig.json` does. A new
-test needing Bun runtime APIs should be added to that project's `files`; one that only needs `bun:test` should
-not, so it keeps seeing the app's types.
+These files are type-checked by the directory-scoped Bun project, `tsconfig.bun.json`. They get Bun and Node types,
+including `bun:test` and Bun runtime APIs such as `$`. Add a new tooling test directly under `tests/tooling/`; no
+tsconfig update is needed.
+
+The Bun project avoids general app imports because Bun's globals conflict with the React Native and Jest globals used
+by the app. Translation tooling may import `src/languages/en.ts`: its CONST dependencies use Bun-safe defaults, while
+web and native builds resolve platform-specific runtime values.
diff --git a/tests/tooling/TranslationImport.test.ts b/tests/tooling/TranslationImport.test.ts
new file mode 100644
index 000000000000..ad055150d1f4
--- /dev/null
+++ b/tests/tooling/TranslationImport.test.ts
@@ -0,0 +1,11 @@
+import {describe, expect, it} from 'bun:test';
+
+import CONST from '@src/CONST';
+import en from '@src/languages/en';
+
+describe('translation imports', () => {
+    it('loads real translations with Bun-safe CONST defaults', () => {
+        expect(CONST.NEW_EXPENSIFY_URL).toBe('https://new.expensify.com/');
+        expect(en.multifactorAuthentication.unsupportedDevice.pleaseUseWebApp).toContain(`href="${CONST.NEW_EXPENSIFY_URL}"`);
+    });
+});
diff --git a/tests/tooling/setup.ts b/tests/tooling/setup.ts
index f4ca502ad5d1..0ac88765bf50 100644
--- a/tests/tooling/setup.ts
+++ b/tests/tooling/setup.ts
@@ -6,8 +6,8 @@ import {jest} from 'bun:test';
 // GitHub Actions always sets GITHUB_REPOSITORY in CI, but local runs need a default, mirroring jest/setup.ts's
 // equivalent fallback for the test files Jest still owns.
 if (!('GITHUB_REPOSITORY' in process.env)) {
-    (process.env as NodeJS.ProcessEnv).GITHUB_REPOSITORY_OWNER = 'Expensify';
-    (process.env as NodeJS.ProcessEnv).GITHUB_REPOSITORY = 'Expensify/App';
+    process.env.GITHUB_REPOSITORY_OWNER = 'Expensify';
+    process.env.GITHUB_REPOSITORY = 'Expensify/App';
 }
 
 // The code under test logs heavily, which drowns out the actual results. Jest's CI runs pass --silent for the same
diff --git a/tests/tooling/tsconfig.json b/tests/tooling/tsconfig.json
deleted file mode 100644
index 89e7d0f63b6d..000000000000
--- a/tests/tooling/tsconfig.json
+++ /dev/null
@@ -1,17 +0,0 @@
-{
-    // CIGitLogic is the one test here that uses Bun's runtime API — the `$` shell — which needs `@types/bun`.
-    // Those types redeclare globals that the app's own types already own: a `jest` namespace that shadows
-    // @types/jest's generic signatures, and a `fetch` carrying `preconnect`. Loading them into the root project
-    // produces ~1,100 errors across tests/unit, so this project confines them to the single file that needs them.
-    // Everything else in tests/tooling stays in the root project, where it sees the app's real types.
-    //
-    // `include: []` is required: `extends` inherits the root project's `include`, which would otherwise pull the
-    // whole app in here and reintroduce the same conflict this file exists to avoid.
-    "extends": "../../tsconfig.json",
-    "compilerOptions": {
-        "types": ["@types/bun"],
-        "noEmit": true
-    },
-    "include": [],
-    "files": ["CIGitLogic.test.ts"]
-}
diff --git a/tests/unit/CONSTRuntime.test.ts b/tests/unit/CONSTRuntime.test.ts
new file mode 100644
index 000000000000..5f3633d2ca48
--- /dev/null
+++ b/tests/unit/CONSTRuntime.test.ts
@@ -0,0 +1,22 @@
+import CONST_RUNTIME from '@src/CONST/runtime.web';
+
+jest.mock('react-native-config', () => ({
+    NEW_EXPENSIFY_URL: 'https://staging.example.com',
+    EXPENSIFY_ACCOUNT_ID_ACCOUNTING: '123',
+}));
+
+jest.mock('react-native-key-command', () => ({
+    constants: {
+        keyInputEnter: 'configuredEnter',
+    },
+}));
+
+describe('CONST runtime values', () => {
+    it('uses configured values with defaults for missing values', () => {
+        expect(CONST_RUNTIME.NEW_EXPENSIFY_URL).toBe('https://staging.example.com/');
+        expect(CONST_RUNTIME.EXPENSIFY_ACCOUNT_IDS.ACCOUNTING).toBe(123);
+        expect(CONST_RUNTIME.EXPENSIFY_ACCOUNT_IDS.CONCIERGE).toBe(8392101);
+        expect(CONST_RUNTIME.KEY_COMMANDS.keyInputEnter).toBe('configuredEnter');
+        expect(CONST_RUNTIME.KEY_COMMANDS.keyInputEscape).toBe('keyInputEscape');
+    });
+});
diff --git a/tsconfig.base.json b/tsconfig.base.json
new file mode 100644
index 000000000000..eca65ec97f85
--- /dev/null
+++ b/tsconfig.base.json
@@ -0,0 +1,26 @@
+{
+    "$schema": "https://json.schemastore.org/tsconfig",
+    "extends": "expo/tsconfig.base",
+    "compilerOptions": {
+        "isolatedModules": true,
+        "strict": true,
+        "incremental": true,
+        "paths": {
+            "@assets/*": ["./assets/*"],
+            "@components/*": ["./src/components/*"],
+            "@github/*": ["./.github/*"],
+            "@hooks/*": ["./src/hooks/*"],
+            "@libs/*": ["./src/libs/*"],
+            "@navigation/*": ["./src/libs/Navigation/*"],
+            "@pages/*": ["./src/pages/*"],
+            "@prompts/*": ["./prompts/*"],
+            "@scripts/*": ["./scripts/*", "./.github/scripts/*"],
+            "@server/*": ["./server/*"],
+            "@styles/*": ["./src/styles/*"],
+            "@src/*": ["./src/*"],
+            "@userActions/*": ["./src/libs/actions/*"],
+            "@selectors/*": ["./src/selectors/*"],
+            "tests/*": ["./tests/*"]
+        }
+    }
+}
diff --git a/tsconfig.bun.json b/tsconfig.bun.json
new file mode 100644
index 000000000000..7e5d2ae4b42c
--- /dev/null
+++ b/tsconfig.bun.json
@@ -0,0 +1,9 @@
+{
+    "extends": "./tsconfig.base.json",
+    "compilerOptions": {
+        "types": ["bun"],
+        "lib": ["ESNext"]
+    },
+    "include": ["scripts", "tests/tooling", "server/libs", "server/plugins", "server/stubs", "evals"],
+    "exclude": ["**/node_modules/*", "**/dist/*", "server/victory-chart-renderer/**"]
+}
diff --git a/tsconfig.json b/tsconfig.json
index 42baf407b6bb..1e76f426b439 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,12 +1,10 @@
 {
     "$schema": "https://json.schemastore.org/tsconfig",
-    "extends": "expo/tsconfig.base",
+    "extends": "./tsconfig.base.json",
     "compilerOptions": {
         "types": ["react-native", "react-native-web", "jest", "node"],
         "lib": ["DOM", "ESNext"],
-        "isolatedModules": true,
-        "strict": true,
-        "incremental": true,
+        // Babel reads this config directly and does not resolve its `extends` chain.
         "paths": {
             "@assets/*": ["./assets/*"],
             "@components/*": ["./src/components/*"],
@@ -17,6 +15,7 @@
             "@pages/*": ["./src/pages/*"],
             "@prompts/*": ["./prompts/*"],
             "@scripts/*": ["./scripts/*", "./.github/scripts/*"],
+            "@server/*": ["./server/*"],
             "@styles/*": ["./src/styles/*"],
             "@src/*": ["./src/*"],
             "@userActions/*": ["./src/libs/actions/*"],
@@ -24,43 +23,20 @@
             "tests/*": ["./tests/*"]
         }
     },
-    // bun:test's module declaration, for tests/tooling. Referenced through `files` rather than `include`
-    // because `exclude` below covers node_modules and would otherwise drop it. This is the one file in bun-types
-    // that declares the module; the package's other declarations (notably its global JSX namespace) are
-    // deliberately not pulled in, as they conflict with the app's React types.
-    "files": ["node_modules/bun-types/test.d.ts"],
-    "include": [
-        "src",
-        "web",
-        "website",
-        "docs",
-        "assets",
-        "config",
-        "tests",
-        "jest",
-        "prompts",
-        "__mocks__",
-        ".github/**/*",
-        ".storybook/**/*",
-        ".claude/**/*",
-        "scripts",
-        "modules",
-        "**/*.nitro/*.ts",
-        "**/*.nitro/*.tsx"
-    ],
-    // CIGitLogic, Bun-only scripts and everything under evals/ use Bun's APIs, so they need @types/bun, whose globals
-    // conflict with this project's. They are type-checked by tests/tooling/tsconfig.json,
-    // scripts/tsconfig.json and evals/tsconfig.json instead — see the comments there.
+    "include": ["src", "website", "docs", "assets", "tests", "jest", "prompts", "__mocks__", ".storybook/**/*", ".claude/**/*", "modules", "**/*.nitro/*.ts", "**/*.nitro/*.tsx"],
     "exclude": [
         "**/node_modules/*",
         "**/dist/*",
         ".github/actions/**/index.js",
         "**/docs/*",
         ".claude/worktrees/**",
-        "tests/tooling/CIGitLogic.test.ts",
-        "scripts/applyPatches.ts",
-        "scripts/lint.ts",
-        "scripts/typecheck.ts",
-        "evals"
+        "tests/tooling",
+        "server/libs",
+        "server/plugins",
+        "server/stubs",
+        "evals",
+        ".github",
+        "web/proxy.ts",
+        "config"
     ]
 }
diff --git a/tsconfig.node.json b/tsconfig.node.json
new file mode 100644
index 000000000000..21d512a9facd
--- /dev/null
+++ b/tsconfig.node.json
@@ -0,0 +1,9 @@
+{
+    "extends": "./tsconfig.base.json",
+    "compilerOptions": {
+        "types": ["node"],
+        "lib": ["ESNext"]
+    },
+    "include": [".github/**/*", "web/proxy.ts", "config/**/*", "config/**/*.d.mts"],
+    "exclude": ["**/node_modules/*", "**/dist/*", ".github/actions/**/index.js"]
+}