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Third-party compilers

Some projects require a patched typescript compiler which adds additional features. For example, ttypescript and ts-patch add the ability to configure custom transformers. These are drop-in replacements for the vanilla typescript module and implement the same API.

For example, to use ttypescript and ts-transformer-keys, add this to your tsconfig.json:

"ts-node": {
// This can be omitted when using ts-patch
"compiler": "ttypescript"
"compilerOptions": {
// plugin configuration is the same for both ts-patch and ttypescript
"plugins": [
{ "transform": "ts-transformer-keys/transformer" }