For contact, I prefer Matrix, where I am as @ruther:ditigal.xyz, you can reach me via e-mail at rutherther@ditigal.xyz. I also use IRC, I am connected most of the time on libera.chat as rutherther. Alternatively I am also currently on Discord, as @rutherther.
I have migrated most of my work to my self-hosted sourcehut instance https://hub.ditigal.xyz/, repositories at https://git.ditigal.xyz/~ruther, with mirrors at https://git.sr.ht/~ruther and https://codeberg.org/Rutherther/. I will not be updating my GitHub repositories anymore.