feat: use Node's --experimental-detect-module
#380
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This is an experiment to leverage Node's new ESM detection (nodejs/node#50096) to replace the CommonJS loader.
Currently, the tests fail with
require is not definedso we won't be able to use this (at least without a breaking change).Seems like Node expects ambiguous ESM files to be written in strict ESM (e.g. no use of
require(),__filename, etc.). In contrast, tsx compiles ESM to CJS (loose ESM) so it allows a mix of both ESM and CJS syntax.