Assuming you are not in a CGNAT, which is common for mobile networks: DNS with low TTL such as FreeDNS, pointing to your IP. And ofc, if you have a router in between, port-forwarding.
Otherwise, a VPN such as Tailscale. But you would need to install it on all your devices.
Otherwise, for HTTP(S) web services, a reverse-proxy such as CloudFlare.
Sorry, not an answer to your exact question... Dockge might be the answer if you need a web UI to manage Docker containers.
If you need something more specific, like a button dashboard to run custom commands, perhaps you could build your own with Vite (Node.js). You will need to understand basic HTML, CSS and JavaScript.(EDIT: OliveTin makes more sense.)
As for authentication, you could configure a basic authentication on your favourite reverse proxy (such as Nginx), or look for something more advanced such as OIDC/OAuth2 through Keycloak.
You are invited to join the CopyParty! This has a web UI accessible from the browser, also from mobile, files are stored directly on the filesystem (not encrypted or on a database) and you can mount it as a network drive on Windows and Linux. But it doesn't let you sync files for offline use, at least not without the help of some auxiliary tools.
You won't find anything simpler to install and configure than this.
Would you mind to share how to copy your setup? In particular how to mirror all your GitHub repos, do you have to manually add them to Gitea one by one?
If you can share your error message we might be able to better pinpoint the issue.
EDIT: I searched a bit and now I understand better what you are trying to do. I didn't know about this "SSH shim" idea. This is not what I have done on my setup, sorry.
If port-forwarding is an issue, you can always use a free VPN to reach your self-hosted services. Or if you want to make them public, you can set up yourself a relay on AWS LightSail for less than 5$/month. Or if you want to save as much as possible you can use TailScale or CloudFlare's Zero Trust network to self-host for free using their server as a relay.
Are they referring to OpenXML, the format used in modern office documents?
What are they suggesting? To build a new standard set of specs to replace it?
For what it matters, without reading the 8000 pages of specs I still managed to programmatically produce a spreadsheet document from scratch. It took me a few tens of hours, that's true, but it wasn't that difficult after all.
They provide decent defaults for all the not-so-straightforward configurations, and they provide a web UI to configure the rest. That's the sole reason I would recommend it to get one's feet wet without having to work too much.
If one is committed to do things "the right way" they could switch to Nginx and "proper" self-hosting later.
I have to admit that I didn't really think about reminders. That would perhaps make more sense for Simple Calendar, perhaps in the future I might consider linking notes and reminders. Or maybe it would make sense to implement it directly in Simple Notes? I don't know, I'll keep that in mind for later, thanks!
the number of clicks/menus/presses it takes to create a note
I strongly agree on that. It must be at most as many clicks as on Google Keep, i.e. two clicks (plus a few to open the app).
import existing Keep notes from a Google Takeout into your Simple Notes
I didn't think about that. That shouldn't be too hard. After the MVP (minimum viable product) will be ready, imports from various common formats should be implemented, and I guess Google Takeout for Google Keep should be supported too.
DXVK was born from a Nier Automata player Linux enthusiast? That's cool! I never checked, I assumed it was build by some big company like Valve or something. Kudos to Philip Rebohle!
Well, that's a pretty amazing result, especially for that price. Cat must be very proud of you!
And thanks for listing the components, I wasn't aware of the HT-RA62. Prices for LoRa modules have come down a lot since last time I checked!