UmbrelApps

A community app store for Umbrel, store id whatsnext. Add it in umbrelOS under App Store → Community App Stores, using the clone URL of this repository.

Apps

Electrum Gate

Reach your own Electrum server from outside your network, over TLS. An Electrum server speaks plain TCP; a wallet on the road wants TLS. This app puts a proxy in between, using the certificate a reverse proxy on the same Umbrel already manages.

Two containers, one image, built from tools/electrum-gate/ by its build.sh (nginx on alpine, plus python3). The app folder holds only the compose file, the manifest, the icon and your data.

Container	What it does
server	terminates TLS on 50022 and forwards plain to the Electrum server; serves the dashboard on port 80 behind the umbrelOS app proxy
agent	same image, different command; writes status.json every minute, reads the certificates from the mounted folders, queries the Electrum server, and accepts the certificate choice

The agent cannot reload nginx itself, as that would need the Docker socket and it is deliberately absent. It writes cert.conf with the chosen paths and drops a flag file; the nginx container reloads itself. A reload keeps existing wallet connections alive.

Port	For
50022	TLS for Electrum wallets. Not the conventional 50002: Fulcrum occupies that on the host, and with Fulcrum as the backend the container would not start
3850	the web UI, through the umbrelOS app proxy

Electrs, Fulcrum and ElectrumX all work, switchable in the umbrelOS settings: the app declares the dependency and uses the address it is handed. Details, with sources, in Docs/Referenties/Umbrel-appstore-spec.md §4.

Tor or TLS. The privacy win is in running your own server, and you have that the moment you do. Tor remains the better choice for privacy; TLS wins on speed, on mobile, and on networks that block Tor. The trade-off is written out in Docs/Referenties/Clients.md §1.

Evolu Relay

Trezor Suite syncs labels and account names between devices, and by default that runs through a server operated by Trezor. That server is built on Evolu, and its relay is published as an npm package. This app runs that relay on your own machine, with an owner allowlist around it. The data is end to end encrypted on the device, so self-hosting does not change that guarantee, it only changes who holds the encrypted copy.

Three containers, one image, built from tools/evolu-relay/ by its build.sh (node on Debian slim, plus nginx and python3). The app folder holds only the compose file, the manifest, the icon and your data.

Container	What it does
relay	the sync relay, published on host port 3852; our src/index.js around @evolu/nodejs, adding the allowlist
agent	same image, different command; serves the status API and drops commands from the page into a mailbox the relay empties
server	same image; nginx serving the status page on port 80 behind the umbrelOS app proxy, with its sign-in

The relay publishes its own port because a sync client is not a browser with a session cookie; the page sits behind the app proxy because it is. New owners are admitted only while a two-minute learning window is open on the page; everyone else is refused and listed, so you can allow them by hand.

Documentatie

Alles staat in Docs/. Begin bij Docs/CONTINUE_HERE.md; dat is de index die naar de volgende stap wijst.

Waar je heen wilt	Waar het staat
Wat er nu speelt en wat de volgende stap is	Docs/CONTINUE_HERE.md
Wat umbrelOS van een app store verwacht	Docs/Referenties/Umbrel-appstore-spec.md
Hoe Electrum Gate vandaag in elkaar zit	Docs/Referenties/Architectuur-huidig.md
Welke wallets hierheen kunnen wijzen, en wanneer Tor beter is	Docs/Referenties/Clients.md
Wat er over de sync-server van Trezor bekend is	Docs/Referenties/Upstream-evolu-relay.md
Versiegeschiedenis van Electrum Gate	Docs/CHANGELOG-electrum-gate.md
Waar documentatie hoort	Docs/README.md

Tests

python tests/test_appstore_vorm.py

Die gaat over de store en vindt zijn apps zelf: id gelijk aan mapnaam, store-voorvoegsel, veldvolgorde in het manifest, en een app_proxy die naar een bestaande service wijst. Daarnaast twee suites voor Electrum Gate:

python tests/test_agent_certificates.py

Losse scripts, geen afhankelijkheden. Let op de regels met OVERGESLAGEN: die toetsen hebben de certificaatwinkel van het besturingssysteem of netwerk nodig, en zijn dan niet bewezen.

Licentie

De apps zijn dunne lagen om bestaande onderdelen: nginx en Alpine Linux (BSD/MIT) voor Electrum Gate, en straks de relay van Trezor, die zijn eigen licentie houdt. Voor de verpakking zelf is nog geen licentie gekozen.