docs: [WIP] add npmx deployment instructions for self hosting

[serhalp]

WIP — opening this to track remaining blockers and start drafting docs

Blockers

• chore: use getEnv environment abstraction in lunaria module #1146
• chore: use getEnv in oauth module for platform agnosticity #1148
• can we avoid needing pnpm remove @vercel/kv && pnpm add @netlify/blobs?
  fix: migrate to upstash unstorage driver in prod #1169
• hardcoded vercel-kv (uses fallback to filesystem caching, but that doesn't work in serverless/short-lived/diskless environments)
  fix: migrate to upstash unstorage driver in prod #1169
• deal with hardcoded vercel-runtime-cache (uses fallback to filesystem caching, but that doesn't work in serverless/short-lived/diskless environments)
• what to do about modules/isr-fallback.ts?
• what to do about redirects in vercel.json
• what to do about Vercel analytics stuff?

[vercel]

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
npmx.dev	Ignored		Feb 7, 2026 5:22pm

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

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[okineadev]

This would be useful ✌️