PosterChan

about

description

PosterChan is the Android half of a **Nostr-powered personal cloud** and a **self-hosted AI powerhouse** that runs on hardware you own. Your notes, calendar, contacts, files, passwords and mail live as encrypted Nostr events on a relay you run — no account with anybody, no subscription, no vendor holding the keys. **The personal cloud** - **Notes**: private, offline-first, encrypted to your own key. Write with no signal; it syncs when you have one. - **Calendar and contacts**: real **CalDAV/CardDAV**, so your phone's own calendar and contacts apps sync with your node like any other server — one account for both. - **Files and folder sync**: keep Documents and Pictures in step between phone and desktop through your own node. Contents are encrypted before they leave the device, so your server stores a folder it cannot read. - **Password manager**: logins, one-time codes (TOTP) and a generator, with **Android autofill** offering them in your other apps and browsers. Every entry is encrypted on your device — the relay holds ciphertext. - **Bookmark sync**: the companion add-on (Firefox, Chrome, Edge, Brave) keeps bookmarks in step across browsers, sealed with the same vault key. - **Mail**: your own IMAP/SMTP accounts, mirrored as encrypted events so search works without a round trip. **The AI powerhouse** - **Chat**: streaming LLM conversations against your own models or any OpenAI-compatible API. - **Generation**: images, music and video, produced on your own GPU rather than someone's rented one. - **Private search**: a metasearch engine bundled with your node, with AI overviews and citations. - **Live streaming**: go live from your camera or screen (NIP-53), and watch other people's streams. - **Voice and video calls**: 1:1 and group, over WebRTC. **And a full Nostr client**: feeds, threads, profiles, DMs, communities, mini apps and a web-of-trust relay. **Monero Zaps**: tip any post or person in **Monero (XMR)** with the ɱ button — private money for a private network, from the built-in Monero micro-wallet or the wallet you already use — right beside Lightning zaps. Self-hostable by design — point the app at your own instance; the default is poster.place.

publisher

4b56bbf41c92e586e88927acb78836eb49f2b184081ef852625cf78be7d56bd6

first seen

2026-09-17T22:30:25.233730+00:00

last event

2026-10-27 01:09 UTC

website

https://poster.place

install

zapstore.dev or any Zapstore-compatible client

topics

#ai #bookmarks #calendar #monero #nostr #notes #passwords #personal-cloud #self-hosted #social #streaming #zaps

source & build

repository

https://github.com/loblawbob873-svg/posterchanai

arch flags

android-armeabi-v7a android-x86 android-x86_64 android-arm64-v8a

manifest

zapstore.yaml ok checked 2026-09-28T15:06:01.501167+00:00

{
  "icon": "./static/icon-512.png",
  "license": "GPL-3.0-or-later",
  "name": "PosterChan",
  "release_notes": "./RELEASE_NOTES.md",
  "release_source": "./posterchan.apk",
  "repository": "https://github.com/loblawbob873-svg/posterchanai",
  "summary": "A Nostr-powered personal cloud and self-hosted AI \u2014 notes, calendar, contacts, files, passwords",
  "tags": [
    "nostr",
    "personal-cloud",
    "self-hosted",
    "notes",
    "calendar",
    "passwords",
    "bookmarks",
    "ai",
    "social",
    "streaming"
  ],
  "website": "https://poster.place"
}

releases (kind 30063)

224 releases indexed; latest 1.0.2618.

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

1.0.2618 — zapstore.apk

sha256

6a7a07659c245fa5e335856855b4ef768f74751ea23dead5c79f5fe7e14ae26b

size

26.5 MB

archs

android-armeabi-v7a, android-x86, android-x86_64, android-arm64-v8a

version code

2618

apk cert sha256

c696595f4ffa6e5f9f010fb0d9faedda2faffa42ba38338163381227f935b31b

download

zapstore.apk

1.0.2617 — zapstore.apk

sha256

31043a6e2fc3ac74a1c9173869409ef6f3196d544f017d6e147de7539b7b0df3

size

26.5 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

2617

apk cert sha256

c696595f4ffa6e5f9f010fb0d9faedda2faffa42ba38338163381227f935b31b

download

zapstore.apk

1.0.2614 — zapstore.apk

sha256

4877d05e667ee8af05ba6696d6c40121672672c58b32bb797a91f66c555ce923

size

26.5 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

2614

apk cert sha256

c696595f4ffa6e5f9f010fb0d9faedda2faffa42ba38338163381227f935b31b

download

zapstore.apk

1.0.2612 — zapstore.apk

sha256

0f2dd08e790f6e2c137b3afd97161363bad1d876813844fa33ea125076fce354

size

26.5 MB

archs

android-armeabi-v7a, android-x86, android-x86_64, android-arm64-v8a

version code

2612

apk cert sha256

c696595f4ffa6e5f9f010fb0d9faedda2faffa42ba38338163381227f935b31b

download

zapstore.apk

1.0.2611 — zapstore.apk

sha256

378d0b2a2e85fb6644c8a7b66a5bfef38c1a39e8039df54dffc8e0a75827734a

size

26.5 MB

archs

android-x86_64, android-arm64-v8a, android-armeabi-v7a, android-x86

version code

2611

apk cert sha256

c696595f4ffa6e5f9f010fb0d9faedda2faffa42ba38338163381227f935b31b

download

zapstore.apk

1.0.2609 — zapstore.apk

sha256

cbd93c1e51aff93196add0b1ccc466bc881dc6cbe6a82d2d5d2eae3b95e9a373

size

26.5 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

2609

apk cert sha256

c696595f4ffa6e5f9f010fb0d9faedda2faffa42ba38338163381227f935b31b

download

zapstore.apk

Showing the newest 6 asset descriptors; the full set is in /api/apps/4b56bbf4…