I needed another corded mouse and this time around I thought of @PKL@mastodon.social and @pronk@mastodon.social instead of Logitech's shareholders. These guys make open source mice among other open source hardware under the brand Ploopy. You can order one from them, assembled or as a kit, or you could print and build it entirely by yourself.
The mouse itself is pretty great. Coming from a long line of Logitech (MX518/G5/G500/G502), it's a bit larger than what I'm used to but I think I'm getting accustomed to it.
Here's another shot of it:
My scroll wheel was very stiff and irritating at first. It did loosen over time and is now completely useable. It doesn't free-spin, but it also doesn't take a lot of force to move.
The lack of clicking is a little disconcerting, but not a deal-breaker for me. I guess you could add an extra part to make it click โ like putting a playing card in the spokes of a bicycle wheel.
Because I bought the trackball mouse, I changed the trackball to scroll when a button is held. I now have horizontal and vertical scrolling, and don't use the scroll wheel except for middle clicking.