PosterChan AI is a Nostr-powered personal cloud and a self-hosted AI powerhouse,
running on one box you own.
The cloud half replaces what you'd otherwise rent: notes with Joplin import, a
calendar and addressbook served over real CalDAV/CardDAV so your phone's own apps
sync with them, files on encrypted storage, folder sync for Documents and Pictures
across desktop and Android, mail over your own IMAP/SMTP, music, budget, and a
password manager with a browser extension. All of it is stored as NIP-44-encrypted
Nostr events on a web-of-trust relay you run โ so there is no proprietary schema,
no export to beg for, and nothing readable by anyone holding the disk.
The AI half is the part a cloud drive can't do. The same machine runs your own
models: chat, image generation, text-to-video, text-to-music, TTS/STT and voice
cloning, a bundled SearXNG metasearch engine, OBS live streaming announced over
NIP-53, and autonomous bots on Telegram, Pleroma and Nostr. Cloud LLMs work, or
the built-in native llama.cpp on CPU, CUDA, ROCm or Intel Arc โ load-balanced
across several boxes with a shared GPU lock so one card can serve chat, images,
video and music without thrashing.
It ships as a cyberpunk web client and PWA, a desktop app for Windows/macOS/Linux
with bundled Tor, an Android APK, and a windowed desktop mode. The native apps
bundle the client and can run with no server at all โ relays and a key are enough.
Try it in one command, no signup, no AI stack, ~2 GB:
git clone

GitHub
GitHub - loblawbob873-svg/posterchanai: PosterChan AI is a Nostr-powered personal cloud and a self-hosted AI powerhouse, running on one box you own.
PosterChan AI is a Nostr-powered personal cloud and a self-hosted AI powerhouse, running on one box you own. - loblawbob873-svg/posterchanai
&& cd posterchanai
docker compose --profile nostr up -d --build
Then open
http://localhost:3051/client โ a self-hosted Nostr relay, full web
client and Blossom media server. Swap the profile for cpu/cuda/rocm/intel when you
want the AI.
GPLv3.
#nostr #selfhosted #privacy #ai #linux