tsconfig.json

{
  "extends": "@tsconfig/strictest/tsconfig.json",
  "compilerOptions": {
    // Opt in to these settings
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "useDefineForClassFields": true,

    // Loosen these strict settings
    // I'm ok treating `foo?: string` == `foo: string | undefined`
    "exactOptionalPropertyTypes": false,
    // IDE shows override methods, I'm not too worried about this.
    "noImplicitOverride": false,
    // I don't want extra syntax just because the type has dynamic keys.
    // obj.key -> obj['key'] -- no thanks
    "noPropertyAccessFromIndexSignature": false,
    // We use classes for GQL schema declarations, but we don't instantiate them.
    "strictPropertyInitialization": false,
    // I know JS allows throwing anything, so catch(e: unknown) is the "safest."
    // In practice, though, all modern code we use throws Error objects.
    // We also enforce this in our own codebase.
    // Ideally, we could use an Error type in our catch blocks.
    // But since only unknown or any is allowed, we'll use any.
    "useUnknownInCatchVariables": false,

    // Disabling for now, but should be enabled & fixes applied
    "noFallthroughCasesInSwitch": false,
    "noUncheckedIndexedAccess": false,
    // Possibly enable later & fix. Might need if/when switching to non-tsc transpilation.
    "isolatedModules": false,

    // Handled by ESLint
    "noUnusedLocals": false,
    "noUnusedParameters": false,

    // Transform plugins
    "plugins": [
      { "transform": "typescript-transform-paths" },
      { "transform": "ts-transformer-keys/transformer" },
    ],

    // Path resolution
    "baseUrl": ".",
    "paths": {
      "~/common": ["./src/common"],
      "~/common/*": ["./src/common/*"],
      "~/core": ["./src/core"],
      "~/core/*": ["./src/core/*"],
    },

    // Compilation
    "lib": ["esnext"],
    "target": "esnext",
    "module": "esnext",
    "moduleResolution": "bundler",
    "jsx": "react-jsx",
    "outDir": "./dist",
    "sourceMap": true,
    "incremental": true,
  },
  "include": ["src", "test", "tools", ".eslintrc.cjs", "jest.config.ts", "dbschema/seeds"],
  "exclude": ["node_modules", "dist"]
}