diff --git a/nym-wallet/eslint.config.js b/nym-wallet/eslint.config.js
deleted file mode 100644
index d4a9f8cec9..0000000000
--- a/nym-wallet/eslint.config.js
+++ /dev/null
@@ -1,23 +0,0 @@
-/**
- * Flat ESLint config for @nymproject/nym-wallet-app.
- *
- * Imports the shared React/TS preset and overrides parserOptions.project to
- * point at the wallet's dedicated lint tsconfig.
- */
-
-const sharedConfig = require('@nymproject/eslint-config-react-typescript');
-
-module.exports = [
-  ...sharedConfig,
-  {
-    languageOptions: {
-      parserOptions: {
-        project: './tsconfig.eslint.json',
-        tsconfigRootDir: __dirname,
-      },
-    },
-  },
-  {
-    ignores: ['dist/**', 'node_modules/**', 'src-tauri/**', '*.config.js'],
-  },
-];
diff --git a/sdk/typescript/packages/mui-theme/eslint.config.js b/sdk/typescript/packages/mui-theme/eslint.config.js
deleted file mode 100644
index afe00b9339..0000000000
--- a/sdk/typescript/packages/mui-theme/eslint.config.js
+++ /dev/null
@@ -1,123 +0,0 @@
-/**
- * Flat ESLint config for @nymproject/mui-theme.
- *
- * Mirrors the previous inherited config at sdk/typescript/.eslintrc.js
- * (airbnb-base, NOT airbnb-React). mui-theme has no dedicated tsconfig.eslint
- * - it uses tsconfig.json, matching the previous parent default.
- *
- * Behavior preserved 1:1 with the pre-ESLint-9 setup.
- */
-
-const { FlatCompat } = require('@eslint/eslintrc');
-const js = require('@eslint/js');
-
-const compat = new FlatCompat({
-  baseDirectory: __dirname,
-  recommendedConfig: js.configs.recommended,
-  allConfig: js.configs.all,
-});
-
-module.exports = [
-  ...compat.config({
-    env: {
-      browser: true,
-      es6: true,
-      node: true,
-      jest: true,
-    },
-    parserOptions: {
-      ecmaVersion: 2019,
-      sourceType: 'module',
-    },
-    globals: {
-      Atomics: 'readonly',
-      SharedArrayBuffer: 'readonly',
-    },
-    plugins: ['prettier'],
-    // airbnb-typescript/base is intentionally NOT at the top level - see the
-    // matching note in react-components/eslint.config.js for the rationale.
-    extends: ['airbnb-base', 'prettier'],
-    rules: {
-      'prettier/prettier': 'error',
-      'import/prefer-default-export': 'off',
-      'import/no-extraneous-dependencies': [
-        'error',
-        {
-          devDependencies: ['**/*.test.[jt]s', '**/*.spec.[jt]s'],
-        },
-      ],
-      'import/extensions': [
-        'error',
-        'ignorePackages',
-        {
-          ts: 'never',
-          js: 'never',
-        },
-      ],
-    },
-    overrides: [
-      {
-        files: ['**/*.ts', '**/*.tsx'],
-        parser: '@typescript-eslint/parser',
-        parserOptions: {
-          project: './tsconfig.json',
-          tsconfigRootDir: __dirname,
-        },
-        plugins: ['@typescript-eslint/eslint-plugin'],
-        extends: [
-          'airbnb-typescript/base',
-          'plugin:@typescript-eslint/eslint-recommended',
-          'plugin:@typescript-eslint/recommended',
-          'prettier',
-        ],
-        rules: {
-          '@typescript-eslint/explicit-function-return-type': 'off',
-          '@typescript-eslint/no-explicit-any': 'off',
-          '@typescript-eslint/no-var-requires': 'off',
-          'no-use-before-define': [0],
-          '@typescript-eslint/no-use-before-define': [1],
-          'import/no-unresolved': 0,
-          'import/no-extraneous-dependencies': [
-            'error',
-            {
-              devDependencies: ['**/*.test.ts', '**/*.spec.ts'],
-            },
-          ],
-          quotes: [
-            2,
-            'single',
-            {
-              avoidEscape: true,
-            },
-          ],
-          '@typescript-eslint/no-unused-vars': [
-            2,
-            { argsIgnorePattern: '^_', caughtErrors: 'none' },
-          ],
-
-          // Rules removed in @typescript-eslint v6/v7/v8 but still referenced
-          // by airbnb-typescript@16; disable to avoid unknown-rule errors.
-          '@typescript-eslint/lines-between-class-members': 'off',
-          '@typescript-eslint/no-throw-literal': 'off',
-          '@typescript-eslint/space-before-function-paren': 'off',
-          '@typescript-eslint/no-loss-of-precision': 'off',
-          '@typescript-eslint/quotes': 'off',
-
-          // New in @typescript-eslint v8 - was previously @typescript-eslint/no-empty-interface
-          // and @typescript-eslint/ban-types. Disabled to preserve pre-v8 behavior on
-          // existing code (the project relies on `{}` as the default type parameter in some
-          // .d.ts type aliases). Address in a follow-up code-cleanup PR.
-          '@typescript-eslint/no-empty-object-type': 'off',
-
-          // Pre-existing relative-directory imports rely on Node module resolution
-          // (e.g. `import './theme'` resolving to `./theme/index.ts`). The legacy
-          // setup did not enforce file extensions for this case either.
-          'import/extensions': 'off',
-        },
-      },
-    ],
-  }),
-  {
-    ignores: ['tsconfig.json', '**/*.d.ts', 'dist/**/*', 'dist', 'node_modules', '*.config.js'],
-  },
-];
diff --git a/sdk/typescript/packages/react-components/eslint.config.js b/sdk/typescript/packages/react-components/eslint.config.js
deleted file mode 100644
index bd52a2428a..0000000000
--- a/sdk/typescript/packages/react-components/eslint.config.js
+++ /dev/null
@@ -1,147 +0,0 @@
-/**
- * Flat ESLint config for @nymproject/react.
- *
- * Mirrors the previous inherited config at sdk/typescript/.eslintrc.js
- * (airbnb-base, NOT airbnb-React) plus the per-package parserOptions override
- * that previously lived in this directory's .eslintrc.json.
- *
- * Behavior preserved 1:1 with the pre-ESLint-9 setup. The fact that React
- * rules are not active here is pre-existing and intentionally not changed in
- * this migration PR.
- */
-
-const { FlatCompat } = require('@eslint/eslintrc');
-const js = require('@eslint/js');
-
-const compat = new FlatCompat({
-  baseDirectory: __dirname,
-  recommendedConfig: js.configs.recommended,
-  allConfig: js.configs.all,
-});
-
-module.exports = [
-  ...compat.config({
-    env: {
-      browser: true,
-      es6: true,
-      node: true,
-      jest: true,
-    },
-    parserOptions: {
-      ecmaVersion: 2019,
-      sourceType: 'module',
-    },
-    globals: {
-      Atomics: 'readonly',
-      SharedArrayBuffer: 'readonly',
-    },
-    plugins: ['prettier'],
-    // airbnb-typescript/base is intentionally NOT at the top level because it
-    // bundles type-aware @typescript-eslint rules (e.g. dot-notation, return-await)
-    // that throw hard errors on .js files lacking parserOptions.project under
-    // typescript-eslint v8. The legacy v5 setup let these rules fail silently;
-    // this restructure preserves the effective behavior (no type-aware checks on
-    // .js files) without the new hard errors.
-    extends: ['airbnb-base', 'prettier'],
-    rules: {
-      'prettier/prettier': 'error',
-      'import/prefer-default-export': 'off',
-      'import/no-extraneous-dependencies': [
-        'error',
-        {
-          devDependencies: ['**/*.test.[jt]s', '**/*.spec.[jt]s'],
-        },
-      ],
-      'import/extensions': [
-        'error',
-        'ignorePackages',
-        {
-          ts: 'never',
-          js: 'never',
-        },
-      ],
-    },
-    overrides: [
-      {
-        // Intentionally NOT including '**/*.tsx'. The legacy eslintrc had
-        // `files: '**/*.ts'` (no tsx), and ESLint 8's default extension list
-        // was .js-only, so .tsx files were never actually linted. Adding them
-        // here would surface a large body of pre-existing issues unrelated to
-        // the v9 migration; address in a follow-up dedicated to lint cleanup.
-        files: ['**/*.ts'],
-        parser: '@typescript-eslint/parser',
-        parserOptions: {
-          project: './tsconfig.eslint.json',
-          tsconfigRootDir: __dirname,
-        },
-        plugins: ['@typescript-eslint/eslint-plugin'],
-        extends: [
-          'airbnb-typescript/base',
-          'plugin:@typescript-eslint/eslint-recommended',
-          'plugin:@typescript-eslint/recommended',
-          'prettier',
-        ],
-        rules: {
-          '@typescript-eslint/explicit-function-return-type': 'off',
-          '@typescript-eslint/no-explicit-any': 'off',
-          '@typescript-eslint/no-var-requires': 'off',
-          'no-use-before-define': [0],
-          '@typescript-eslint/no-use-before-define': [1],
-          'import/no-unresolved': 0,
-          'import/no-extraneous-dependencies': [
-            'error',
-            {
-              devDependencies: ['**/*.test.ts', '**/*.spec.ts'],
-            },
-          ],
-          quotes: [
-            2,
-            'single',
-            {
-              avoidEscape: true,
-            },
-          ],
-          '@typescript-eslint/no-unused-vars': [
-            2,
-            { argsIgnorePattern: '^_', caughtErrors: 'none' },
-          ],
-
-          // Rules removed in @typescript-eslint v6/v7/v8 but still referenced
-          // by airbnb-typescript@16; disable to avoid unknown-rule errors.
-          '@typescript-eslint/lines-between-class-members': 'off',
-          '@typescript-eslint/no-throw-literal': 'off',
-          '@typescript-eslint/space-before-function-paren': 'off',
-          '@typescript-eslint/no-loss-of-precision': 'off',
-          '@typescript-eslint/quotes': 'off',
-
-          // New in @typescript-eslint v8 - was previously @typescript-eslint/no-empty-interface
-          // and @typescript-eslint/ban-types. Disabled to preserve pre-v8 behavior on
-          // existing code. Address in a follow-up code-cleanup PR.
-          '@typescript-eslint/no-empty-object-type': 'off',
-
-          // Pre-existing relative-directory imports rely on Node module resolution.
-          // The legacy setup did not enforce file extensions for this case either.
-          'import/extensions': 'off',
-        },
-      },
-    ],
-  }),
-  {
-    // Skip .tsx files and the .storybook dir to match what the legacy eslintrc
-    // setup actually linted in practice (default .js extensions plus the
-    // **/*.ts override). The .storybook/*.js files use modern syntax (optional
-    // chaining, JSX in .js) that would require a separate parser config; the
-    // .tsx files have a pre-existing backlog of lint issues. Both are out of
-    // scope for the v9 migration PR.
-    ignores: [
-      'tsconfig.json',
-      '**/*.d.ts',
-      '**/*.tsx',
-      '.storybook/**',
-      'dist/**/*',
-      'dist',
-      'node_modules',
-      '*.config.js',
-    ],
-  },
-];
diff --git a/ts-packages/eslint-config-react-typescript/eslint.config.js b/ts-packages/eslint-config-react-typescript/eslint.config.js
deleted file mode 100644
index f4037093ac..0000000000
--- a/ts-packages/eslint-config-react-typescript/eslint.config.js
+++ /dev/null
@@ -1,38 +0,0 @@
-/**
- * Self-lint config for the shared eslint-config package itself.
- *
- * Intentionally lightweight - this file lints `index.js` (and only that), so
- * we avoid pulling in the full airbnb / typescript-eslint chain that the
- * exported config carries for consumers.
- */
-
-const js = require('@eslint/js');
-const prettierPlugin = require('eslint-plugin-prettier');
-const prettierConfig = require('eslint-config-prettier');
-
-module.exports = [
-  js.configs.recommended,
-  {
-    files: ['*.js'],
-    languageOptions: {
-      ecmaVersion: 2022,
-      sourceType: 'commonjs',
-      globals: {
-        module: 'readonly',
-        require: 'readonly',
-        __dirname: 'readonly',
-        process: 'readonly',
-      },
-    },
-    plugins: {
-      prettier: prettierPlugin,
-    },
-    rules: {
-      ...prettierConfig.rules,
-      'prettier/prettier': 'error',
-    },
-  },
-  {
-    ignores: ['node_modules/**', 'dist/**'],
-  },
-];
diff --git a/ts-packages/types/eslint.config.js b/ts-packages/types/eslint.config.js
deleted file mode 100644
index 466f949aa4..0000000000
--- a/ts-packages/types/eslint.config.js
+++ /dev/null
@@ -1,25 +0,0 @@
-/**
- * Flat ESLint config for @nymproject/types.
- *
- * Imports the shared React/TS preset and overrides parserOptions.project to
- * point at this package's tsconfig (the shared preset assumes ./tsconfig.json
- * which is what we already use here).
- */
-
-const sharedConfig = require('@nymproject/eslint-config-react-typescript');
-const path = require('path');
-
-module.exports = [
-  ...sharedConfig,
-  {
-    languageOptions: {
-      parserOptions: {
-        project: './tsconfig.json',
-        tsconfigRootDir: __dirname,
-      },
-    },
-  },
-  {
-    ignores: ['dist/**', 'node_modules/**', '*.config.js'],
-  },
-];
diff --git a/ts-packages/webpack/eslint.config.js b/ts-packages/webpack/eslint.config.js
deleted file mode 100644
index b0c50fe579..0000000000
--- a/ts-packages/webpack/eslint.config.js
+++ /dev/null
@@ -1,37 +0,0 @@
-/**
- * Lints the webpack helper scripts in this package (index.js, webpack.*.js).
- *
- * Intentionally minimal - prettier + eslint:recommended only; matches the
- * pre-flat-config behavior from the previous .eslintrc.json.
- */
-
-const js = require('@eslint/js');
-const prettierPlugin = require('eslint-plugin-prettier');
-const prettierConfig = require('eslint-config-prettier');
-
-module.exports = [
-  js.configs.recommended,
-  {
-    files: ['*.js'],
-    languageOptions: {
-      ecmaVersion: 2022,
-      sourceType: 'commonjs',
-      globals: {
-        module: 'readonly',
-        require: 'readonly',
-        __dirname: 'readonly',
-        process: 'readonly',
-      },
-    },
-    plugins: {
-      prettier: prettierPlugin,
-    },
-    rules: {
-      ...prettierConfig.rules,
-      'prettier/prettier': 'error',
-    },
-  },
-  {
-    ignores: ['node_modules/**', 'dist/**'],
-  },
-];