Same. I have a router with OPNsense. In the “Dynamic DNS” section I create a “Custom” service with the DynDNS2 protocol. I type in update.dedyn.io as the server address. You need to also get an api key from the desec.io web panel that you input into the username and password fields.

Now everytime the router’s WAN ip changes it automatically edits the DNS zone. So instead of going “your server -> DDNS provider -> DNS CNAME record” it’s just “your server -> DNS A record”

I also have a separate token for my web proxy (traefik) so that it can edit the DNS records to get let’s encrypt certificates through dns challenge as you describe.

As for the desec signups in my case one DNS zone was no problem, but for a second one I needed to e-mail them:

Hello, would it be possible for my newly created account to get one more domain on the account please? I have two personal domains and it would be great if I could keep them both under deSEC

Hi [me], Sure! The limit is mostly there to remind users to enable DNSSEC, but it looks like you’re already doing that (at your old provider).

They asked me to (voluntarily) donate, which I did too.

Heroic Launcher (frontend for Epic Games Launcher) also worked for me on arch linux

If you end up going with Intel anyway, avoid I219-LM (e.g. IBM I340-T2), it has issues where you need to run some commands on startup to disable some of the NIC’s features so that it doesn’t lose connection for a few m every few days. It’s pretty old so you probably won’t end up using it, but just putting it out here.

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https://github.com/LuckyTurtleDev/docker-images/tree/main/dockerfiles/anki

start with env var sync_user1=username:password or something like that

change server url in anki desktop or ankidroid to what you started in docker

done