Run one at home
DOG Mode on Umbrel, three taps.
If you have an Umbrel (their Umbrel Home box, or umbrelOS on a spare computer or a Raspberry Pi 5), you can run a DOG Mode node beside your Bitcoin node. Same app you know, DOG Mode client inside, its own ports so nothing collides.
Settings, App Store, Community App Stores
Paste https://github.com/dogofbitcoin/umbrel-app-store and add it. A store named Dog of Bitcoin appears next to the official one.
Open the store, install DOG Mode
Give it a minute. The first install on a box can take a little longer than the app page suggests; it finishes on its own. Then open the app: DOG Mode, syncing.
Settings, Optimization, Prune Old Blocks
Set it to 10 and you keep a small node; leave it at 0 and you keep the whole chain (about 700 GB). Either way your node relays what DOG Mode relays.
To be counted by this seed, your node has to be reachable from outside: forward TCP port 8433 on your router to your Umbrel. Behind a VPN or a mobile line that is not possible, and that is fine: your node still runs, syncs and relays, it just is not in the count.
Already run the client yourself? Add one line to bitcoin.conf and restart: seednode=dnsseed.dogofbitcoin.com. Your node asks this seed once at startup and gets the pack. The line that puts the seed in the client itself is pull request 7.
Who built the binary, plainly. The DOG Mode project has not published a release yet, so the client in the Umbrel app is compiled from source by the Dog of Bitcoin Foundation at the merged commit 7503240091, with the build recipe and the checksums public at github.com/dogofbitcoin/docker-dogmode. When the project publishes a signed release, the app switches to it. This is a community package, not an official release of the DOG Mode project.