Self-host an agent that builds mini apps from chat and edits its own UI
mobius from mobius-os is a self-hosted personal AI system: you chat with a coding agent through Claude Code or Codex and it builds mini apps on your server and modifies its own UI.
Source
@BIGBULLapp on X · 2026-10-14
Written in our own words. Credit to the original author. Link checked 2026-10-21.
What they did
mobius from mobius-os is a self-hosted personal AI system: you chat with a coding agent through Claude Code or Codex and it builds mini apps on your server and modifies its own UI.
Result (as claimed)
Early project: 34 stars and 67 open issues at the time, so expect setup friction.
Tools they used
Cost: Claude Code: from $17/mo; OpenAI Codex: free plan, paid from $8/mo.
Set it up
Pick a contained repo or task
Start on a branch or side project where mistakes are cheap.
Install and configure
Set up Claude Code, OpenAI Codex, Docker, Python. Read what it can run on your machine and limit permissions where possible.
Run it on a real task
Give it a well-scoped issue and let it work. Review the diff like any pull request.
Add guardrails
Keep tests and CI in the loop, and never let an agent push to main or touch production secrets unattended.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Self-host an agent that builds mini apps from chat and edits its own UI What the original author did: mobius from mobius-os is a self-hosted personal AI system: you chat with a coding agent through Claude Code or Codex and it builds mini apps on your server and modifies its own UI. Reported result (as claimed by the author): Early project: 34 stars and 67 open issues at the time, so expect setup friction. Source: https://x.com/BIGBULLapp/status/2110496462106701855 Tools they used: Claude Code, OpenAI Codex, Docker, Python Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Self-host an agent that builds mini apps from chat and edits its own UI What the original author did: mobius from mobius-os is a self-hosted personal AI system: you chat with a coding agent through Claude Code or Codex and it builds mini apps on your server and modifies its own UI. Reported result (as claimed by the author): Early project: 34 stars and 67 open issues at the time, so expect setup friction. Source: https://x.com/BIGBULLapp/status/2110496462106701855 Tools they used: Claude Code, OpenAI Codex, Docker, Python Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Self-host an agent that builds mini apps from chat and edits its own UI What the original author did: mobius from mobius-os is a self-hosted personal AI system: you chat with a coding agent through Claude Code or Codex and it builds mini apps on your server and modifies its own UI. Reported result (as claimed by the author): Early project: 34 stars and 67 open issues at the time, so expect setup friction. Source: https://x.com/BIGBULLapp/status/2110496462106701855 Tools they used: Claude Code, OpenAI Codex, Docker, Python Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
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Guides for this use case
How to self-host AI agents on a Raspberry Pi, Mac mini or homelab · How to vibe code an app with Claude Code · How to use Claude Code and Codex together · How to use AI agents for Linux, servers and homelabs
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