been using a kensington one for a couple of years and I don’t think i will be able to use a mouse ever again. While this model is not great and it could use some improvements. The whole idea of a trackball is really comfortable
that said, I lost the original ball and it has been incredibly hard to find a proper replacement. we have tried many different ones and they all have downsides that make the experience not great but still better than a mouse
i have not tried it myself but have you taken a look into zig? it looks alot like go but is lower level. i have heard good things about it and it looks nice. of course the ecosystem is quite limited since it’s a quite new language