synergy-core VS Solaar

No one has mentioned ShareMouse yet? (https://www.sharemouse.com/) In my experience it has worked way better than Synergy. I switched after getting fed up with the synergy developers not responding to various multi-year old bugs that made the software unworkable for me (e.g. https://github.com/symless/synergy-core/issues/5992).

The only downside is that you have to "renew maintenance" to continue receiving updates to ShareMouse after a year. But I haven't done that yet and it still works fine for me.

I want to be able to do things like Synergy, Steam Link, Unified Remote, and Media Servers between any of these devices, with as little added latency as possible (especially important for steam link)

i've got several fedora linux machines running and sharing their monitors via synergy (https://symless.com/synergy) , all controlled by the keyboard/mouse on the primary synergy server.

Not sure if this is what you're asking, but I've been using Synergy Pro (Windows, macOS, Linux) for years, and it works seamlessly. It lets you share your mouse and keyboard across multiple systems (with or w/o encryption), copy and paste between computers, etc.

I've got an M2 MacBook Air

Per the Advanced... screen under Displays in System Settings, you can link to a Mac or iPad to control it a la Synergy[0]

I have not done it myself, but I do not see why you could not do it with a current-gen Mac Mini

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[0] https://symless.com/synergy

I previously used a software solution to do the same thing and it was actually really good, better even. It might have been this software but I have to check to be sure - https://symless.com/synergy - as I’m not at my laptop right now.

If it's got the Logitech unifying receiver, it won't work outta the box. You gotta download Solaar

- Solaar: Device manager for Logitech devices (connected via Unifying, Bolt, Lightspeed or Nano receivers + some connected via USB cable / Bluetooth)

from: https://pwr-solaar.github.io/Solaar/

Depending on your mouse, Solaar could do the job. I use it in combination to trigger Fly-Pie.

Now moving on to the Linux part. Do you use gnome/kde? Or some tiling DE? I use Solaar and it's lovely! M720 has a perfectly placed gestures button. I use it to move my windows to left/right monitors and switch between upper/lower desktop spaces. The gesture button works flawlessly when you set up solaar correctly.

I've been beating my head against the wall trying to figure out why this isn't working as I expect. I'm trying to make a user service to run solaar so that my logitech mouse's scroll wheel behaves like I want without having to open the app manually. The software itself provides a .desktop file for autostart, and I used this as a basis.

I've used Solaar for my MX Master 3, works great. https://pwr-solaar.github.io/Solaar/

We don't officially support wireless keyboards or mice for infosec, environmental, and supportability reasons. But if we had to, the established Logitech Unifying and newer Logitech Bolt ecosystem allow for ready re-pairing of dongles with peripherals. Logitech Unifying is fully functional under Linux with solaar from your distro's repos. You have to be astute when buying, to always look for a picture of the dongle with the orange Unifying logo or the safety-yellow Bolt logo, however. If the logo isn't on the packaging or in the promo picture, I can assure you that you will not get a Unifying or Bolt dongle.

Have you tried Solaar?