A Deno-to-Node migration exposes API and package differences

David Bushell recounts moving his own web tooling from Deno to Node. Filesystem and server APIs needed replacements, and native TypeScript execution did not remove every packaging step. In particular, a dependency still needed a JavaScript build for distribution. The account gives concrete migration friction rather than treating compatible syntax as complete runtime compatibility.

David Bushell · Oct 3, 2026

Why it matters

Useful for JavaScript and TypeScript maintainers assessing the cost of changing runtimes or publishing packages for other projects.

More context

Read the API substitutions and package-build choices, then inventory equivalent dependencies in your own project. The author uses a Node server adapter and replaces Deno-specific filesystem calls. Treat his experience as a migration checklist to investigate, not a requirement to switch.

Keep in mind

This is one author’s project and includes strong personal opinions. Its performance observations do not establish a universal runtime ranking. Native TypeScript handling also does not mean every package can ship uncompiled source.

Original read