Questions? Usually the best way to contact me is e-mail to firstname.lastname@example.org.
since 2022-12-18 I’m no longer actively following Twitter, since 2023-07-25 I have no Twitter account anymore, so
consider pinging me at Mastodon, mastodontti.fi/@ypcs.
Any content published at Twitter/X with username “ypcs” after 2022-12-18 is not mine.