# Angular Compatibility Compiler (ngcc) This compiler will convert `node_modules` compiled with `ngc`, into `node_modules` which appear to have been compiled with `ngtsc`. This conversion will allow such "legacy" packages to be used by the Ivy rendering engine. ## Building The project is built using Bazel: ```bash yarn bazel build //packages/compiler-cli/ngcc ``` ## Unit Testing The unit tests are built and run using Bazel: ```bash yarn bazel test //packages/compiler-cli/ngcc/test ``` ## Integration Testing There are tests that check the behavior of the overall executable: ```bash yarn bazel test //packages/compiler-cli/ngcc/test:integration ```