tsconfig.json

{
  "compilerOptions": {
    "target": "ES2020",
    "moduleResolution": "Node",
    "declaration": true,
    "esModuleInterop": true,

    // Best practices
    "strict": true,                                      /* Enable all strict type-checking options. */
    "noImplicitAny": true,                               /* Enable error reporting for expressions and declarations with an implied 'any' type. */
    "strictNullChecks": true,                            /* When type checking, take into account 'null' and 'undefined'. */
    "strictFunctionTypes": true,                         /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
    "strictBindCallApply": true,                         /* Check that the arguments for 'bind', 'call', and 'apply' methods match the original function. */
    "strictPropertyInitialization": true,                /* Check for class properties that are declared but not set in the constructor. */
    "noImplicitThis": true,                              /* Enable error reporting when 'this' is given the type 'any'. */
    "useUnknownInCatchVariables": true,                  /* Default catch clause variables as 'unknown' instead of 'any'. */
    "alwaysStrict": true,                                /* Ensure 'use strict' is always emitted. */
    "noUnusedLocals": true,                              /* Enable error reporting when local variables aren't read. */
    "noUnusedParameters": true,                          /* Raise an error when a function parameter isn't read. */
    "exactOptionalPropertyTypes": true,                  /* Interpret optional property types as written, rather than adding 'undefined'. */
    "noImplicitReturns": true,                           /* Enable error reporting for codepaths that do not explicitly return in a function. */
    "noFallthroughCasesInSwitch": true,                  /* Enable error reporting for fallthrough cases in switch statements. */
    "noUncheckedIndexedAccess": true,
    "noPropertyAccessFromIndexSignature": false, // This is actually loose.
    "skipLibCheck": true,
    
    // New Strict Settings
    "allowUnreachableCode": false,                       /* Error on unreachable code */
    "allowUnusedLabels": false,                          /* Error on unused labels */
    "noImplicitOverride": true,                          /* Ensure overriding members are marked with override modifier */
    "noEmitOnError": true,                               /* Do not emit outputs if any errors were reported */
    "isolatedModules": true,                             /* Ensure each file can be safely transpiled without relying on other imports */
    "forceConsistentCasingInFileNames": true,            /* Ensure consistent casing in file names */
    // TODO(maybe): change all type imports to explicitly say import type X from ...
    // "verbatimModuleSyntax": true,                        /* Only allow import/export statements that are part of ES modules */
  },
  "include": ["src/**/*.ts"],
  "exclude": ["node_modules", "dist", "examples", "tests", "eslint.config.js"]
}