You can contact me through my public mailing list hosted on SourceHut, by sending an email to ~username/list-name@mailing-lists-domain, where username is siiky, list-name is public, and mailing-lists-domain is lists.sr.ht.
I'm online most times on Libera Chat as siiky on #chicken and #petrinets, and available through Matrix as @siiky:matrix.org.
I'm also giving SimpleX a try. To contact me through SimpleX, open my contact address in a SimpleX client.