tsconfig.base.json

{
	"$schema": "https://json.schemastore.org/tsconfig",
	"compilerOptions": {
		"target": "ES2022",
		"lib": ["ES2022"],
		"module": "ESNext",
		"moduleResolution": "bundler",

		"strict": true,
		"esModuleInterop": true,

		// Stricter than `strict: true`.
		"noUncheckedIndexedAccess": true, // arr[i] returns T | undefined
		"exactOptionalPropertyTypes": true, // `?` doesn't auto-add undefined
		"noImplicitOverride": true,
		"noImplicitThis": true,
		"noImplicitReturns": true,
		"noPropertyAccessFromIndexSignature": true,
		"noUnusedLocals": true,
		"noUnusedParameters": true,
		"noFallthroughCasesInSwitch": true,
		"allowUnreachableCode": false,
		"allowUnusedLabels": false,

		// Forces explicit `import type` so bundlers can erase types.
		"verbatimModuleSyntax": true,

		"forceConsistentCasingInFileNames": true,
		"skipLibCheck": true,

		// For DI (Inversify): emit reflect-metadata at runtime.
		"experimentalDecorators": true,
		"emitDecoratorMetadata": true
	}
}