After reading @sindresorhus tweet I am a
little bit torn to move @bifravst to pure ESM.
The benefits are a little hard to justify, especially because it means that some
tooling needs to be replaced (e.g. jest) and other need not so clean workaround
(e.g. need .cjs config files).
https://twitter.com/coderbyheart/status/1349776733986312195