I have used inkscape for this purpose and it can be effective. The display units can be changed in the preferences (inch, cm, etc) and basic shape dimensions input directly. You can input absolute position for shapes and nodes, but I didn’t notice an easy way for relative position. They also have a path effect called “Measure Segments” for that functionality. FWIW, I later preferred blender, but I might try a dedicated tool like LibreCAD mentioned in another comment. They seem to have decent documentation and a wiki.

I wanted something similar from a remote company I was working for. They were pretty good about fulfilling requests, but when I asked for a good kvm switch they said they had trouble in the past and instead recommended a usb hub that can toggle between machines. Then connect both machines to the same monitor and toggle the input. Not ideal, but low cost and functional. Might not suit your needs (would be annoying if you have to frequently toggle back and forth), but if you’re just trying to share your desk space between a work machine and personal, and the monitor input is easy to toggle, it’s worth considering.

I don’t think they have the ux advantage that their wealth suggests due to misaligned incentives. A good portion of their investment is getting users to see as many ads as they will tolerate. Try to modify any privacy settings, for example, and the ux is as garbage as amazon.

Fediverse and self hosted, open source alternatives are still relatively new. Folks have to expect some turbulence. As things grow and more bug reports and contributions can be made, the ux could be superior because they can give users what they want instead of maximizing monetization.

Misskey is a federated facebook alternative I heard about on mastodon recently. I’m not too familiar with it myself, but seems worth mentioning.

It has a “groups” feature that might avoid the “instance per person” lemmy workaround you were thinking about. According to this comparison misskey doesn’t have a like button, but a few of its forks do. Not sure about the upload experience; may depend on the app. I didn’t see any clients listed on their site but did a quick search for an iOS app, which exists, so i assume android, too.

Sorry I don’t have more info, but I hope that’s useful. Best of luck! I’ll be looking for a similar solution in the near future.

Happy to see it get love and spread the word. alternativeto.net is my go to. Worthy of muscle memory. I’ve also found great options in the awesome lists on github. Especially awesome self-hosted if we’re talking software. I thought I remember an alternativeto-like site geared towards cli, but I couldn’t find it last time I looked. LMK if that rings a bell for anyone.

I had a similar change of heart years ago, watching a docu-series on PBS and realizing I wanted more of that content in the world. Even though you can stream PBS for about $5 a month, I canceled Netflix so I could pay PBS $20 a month to start making up for all the time my money was flowing in the wrong direction.

We’re likely to get more of the things we invest in, and less of the things we don’t. That investment includes attention in ad-driven market, not only money.

I know I’m not the first person on lemmy to have this realization, it’s one of the many reasons I like it here.

I’ve had audio sync issues on kodi myself-- specifically osmc on Vero V which is optimized for playback. I tried checking my notes, because it was some time ago. Nothing definitive, but it may have been related to a random crashing issue that turned out to be a bad hdmi port-- which was the last thing I considered checking after triple checking everything else. Anyway, good luck with the troubleshooting. Audio sync issues are a pain but I can also attest yt-dlp has been solid.

I’ve enjoyed Zim in the past but not being able to access it on mobile caused me to migrate. Do you have a way to access your notes on the go?