There are a few ways to do it, but you don’t use caddy for SSH.

• host SSH on port 22, forgejo on a different port. Expose both ports to the internet
• host SSH on a different port, forgejo on port 22. Expose both ports to the internet
• host SSH on port 22. Forgejo on port 2222. Only 22 exposed to the internet. Change the authorized_keys user of the git user on host to automatically call the internal forgejo SSH app

Last option is how I run my Gitea instance, authorized keys is managed by gitea so you don’t really need to do anything high maintenance.

~git/.ssh/authorized_keys:

command="/usr/local/bin/gitea --config=/data/gitea/conf/app.ini serv key-9",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty,no-user-rc,restrict ssh-rsa PUBLICKEYHASH

/usr/local/bin/gitea:

ssh -p 2222 -o StrictHostKeyChecking=no git@127.0.0.14 "SSH_ORIGINAL_COMMAND=\"$SSH_ORIGINAL_COMMAND\" $0 $@"

127.0.0.14 is the local git docker access where I expose the service, but you couldn’t different ports, IPS, etc.

I can’t say if you are overstating it but, only mention that I went through a similar path. I had it multiple scripts running and it was a neverending thing.

Since I have moved to small step I never had a problem.

The biggest advantage I got is for products like opnsense, you can do automatic renewal of certificates using your internal CA.

Generating new certs is still as simple (actually much easier for me) than relying on openssl or easyrsa scripts.

Gigabyte is the exception, 3 HDMI and 1 DP