Don’t use Claude Code or Codex until you’ve done these 5 things…
What tools does Erik Cupsa use?
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Adoptions, drop-offs and switches over time — each with its source.
Latest receipts
Partnered with Vercel at Ship SF to explore eve and AI Gateway, and how they fit together to build agents
I used GPT-6 / Astra in Codex to help work through the hardware, firmware, CAD, and phone app, then built and tested the
Tried building my own tiny wearable from scratch with GPT-6 / Astra in Codex,
@ChatGPT #ChatGPT_Partner #coding #hardware #buildinpublic
Third is Obsidian.
Don’t use Claude Code or Codex unless you have these installed.
Fifth is Supabase.
5 FREE GitHub Repositories Every Software Engineer Needs
If you want to build your own app with Claude, start here
tools that ChatGPT and other agents can call directly
I used Codex to turn my app into an agent-ready product
5 GitHub Repositories Every Software Engineer Needs To Know
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