Port the IMD burn tracker's data refresh to Node 22 with no dependencies, so any machine with Node can run it. dist/ is the finished static site; it reads ten JSON files from dist/data/. refresh/refresh_imd.py (Python + pycryptodome) rebuilds those files from public RPCs (Base, Ethereum, Robinhood Chain), eth.blockscout.com, api.imdnotdead.fun/launches and the communitycoins.imd.fun indexer.

Write refresh/refresh.mjs that does the same: the same sources and fallbacks, the same files, fields, row order and number formats, the same sanity checks. package.json's build script runs it as node refresh/refresh.mjs dist/data and must stay as it is.

It replaces the files only when every check passes; on any failure it keeps the old files, writes imd-refresh-status.json with last_result "failed" and the reason, and still exits 0, so a source that is down never breaks a build. keccak-256 (selectors, event topics, ENS namehash) comes from a small self-contained refresh/keccak.mjs. No npm packages, no Python at run time. Leave dist/, package.json and refresh_imd.py unchanged.

Decide, do not ask: a question blocks the job.