Add it on your Umbrel: Settings, App Store, Community App Stores, paste
https://github.com/dogofbitcoin/umbrel-app-store, then install DOG Mode.
Apps here:
dogofbitcoin-dogmode: a DOG Mode node (Bitcoin Core 31.1 plus the DOG Mode relay policy), packaged the way the Bitcoin Knots app is: Umbrel's own Bitcoin Node interface with the DOG Mode client, its own ports so it runs beside the Bitcoin Node app, usable by apps that need a Bitcoin node. The client is built from source at a pinned commit by the Dog of Bitcoin Foundation (github.com/dogofbitcoin/docker-dogmode); the DOG Mode project has not cut a release yet, and this package is not an official release of theirs.
Maintained by the Dog of Bitcoin Foundation, contact@dogofbitcoin.org.