You’d need to post your complete docker-compose.yaml, otherwise nobody knows what you’re doing.
Also (and I don’t want to sound rude) you should probably start learning docker with a less critical service. If you just learned how volumes work you should not store your passwords in one. Yet.
That’s a very specific problem and I don’t know if there is an existing solution that does exactly what you want.
paperless-ngx does a lot of the things you ask for, it lets you upload pdfs, does OCR and gives you full text search via a web ui. It’s just not made specifically for manuals and it does not highlight the search hits or scrolls to them.
I have no experience with terraform but Bitwarden has an API and CLI, so you might be able to script something with it?
I think choosing a domain registrar with DynDNS support has very little to do with setting up PiHole and Wireguard at home. PiHole and Wireguard will not care about or interact directly with a service like porkbun. Okay, you might configure PiHole to forward DNS requests to porkbuns nameservers, but that’s something every dns provider will support because that’s what dns providers do.
Check out porkbun, they have cheap prices and an API that’s supported by ddclient.
I have heard portforwarding is unsafe and a VPN seems inconvenient to me.
Well, those are pretty much the available options.
People are talking about Tailscale a lot and although I’ve never used it, it might be easy to setup while not being too inconvenient for you.
Just wanted to add that you can get Jeff Geerlings book “Ansible for DevOps” for free right now:
Also not a fan about the closed source thing, but I like about Obsidian that it’s all just markdown. If I ever need to ditch it, I can keep and use my existing files as they are.
Would this also be possible with Zettlr or Logseq?