As of the following commit, SWC is no longer used for building and has been replaced with ESBuild - https://github.com/gitpod-io/openvscode-server/commit/c1fb7325bdca83f9ee9b95c2b3d5572ac800436d Symbols like these should be corrected as not to mislead new developers: https://github.com/gitpod-io/openvscode-server/blob/42e8ff0da22f13d5c39f18564e4bc05105fb888e/build/gulpfile.js#L22-L24