Mastodon: https://mastodon.gamedev.place/@Hempuli
Baba's Mastodon: https://mastodon.gamedev.place/@BabaIsYou
Bluesky: https://bsky.app/profile/hempuli.bsky.social (currently not posting (yet (?)))
Baba's Bluesky: https://bsky.app/profile/babaisyou.bsky.social (see above)
Especially my smaller stuff, like Covemountlikes, will be on the Itch page: https://hempuli.itch.io/
You can subscribe to a newsletter to receive e-mails about news about my games, including Baba-related stuff: https://www.hempuli.com/newsletter.html
I'll be posting stuff in my blog as well: https://www.hempuli.com/blog/