Sure thing!

(also, please do post about it when you eventually decide to switch to linux)

Does i3 do wayland?

Setting up an OIDC provider isn't particularly difficult, but you'll have to run it as a publicly accessible server in order for tailscale to interact with it.

It looks like you can register at netbird.io with email and password.

In your shoes I'd setup that for now, and later look into OIDC or (probably better) into self-hosting nebula (or maybe netbird).

No idea what you are talking about... did you get an assignment to implement some CLI program and want ideas for what to do?

If this program was made in a language that supports creating packages for other programs (e.g. Python, Rust, NodeJS), should this program be a ‘package’, or should it be a standalone program that has a simple “setup” script?

I'd assume what you call "packages for other programs" would be plugins? In that case, unless you have a specific existing program you want to write a plugin for, then yours would be a standalone program.

About the "setup script", if you mean that's an installer of sorts, then no, your program must not necessarily have an installer (you or others may write standalone installers or packages for various package managers, but that's another story).

Just try and see how it goes - it's not like you can't go back

IDK about the current status of x86 with android, but last time I checked it wasn't good.

Lineage might be your best bet... it supports a few androidtv boxes (most notably the nvidia shield) see https://wiki.lineageos.org/devices/

where SyncThing is overkill

I just have a dedicated shared folder between my phone and desktop and drop oneoff stuff there (it's also easier to script this way)

For files I use syncthing (also for music/photos/notes/etc... syncing files is IMHO the way to go wherever applicable).

For sending links to my PC (eg. articles linked from podcasts' notes) I used to rely on firefox sync, but I'm starting to distance myself from Mozilla so I am gonna experiment with wallabang.

For sending small notes to myself (stuff that I want to sort or act upon when I get to my PC), I'm using signal's "note to self" but I'm investigating alternatives because signal doesn't mark such messages as unread and so sometimes I forget I've sent some.

To me it looks like "we believe in our product" companies are an endangered species

That's called dogfooding, not self-hosting :)

Let me get this straight though: I'm not saying no project self-hosts their code (eg. IIRC both KDE and Gnome do), I'm just saying that the majority of FOSS projects (including those that are dedicated to self hosters) does rely on some sort of third party to host their source code.

I don't think it's fair to criticize a FOSS project just because they rely on a third party (even commercial ones) to publish their source code.