Contacting me can easily be done either through email at johannes@kyriasis.com or through IRC on freenode where I usually go by the nick “demize”.
If you want to contact me more securely, do feel free to either just sign or even encrypt the email. To get my key you can either pull it down from your pgp key server of choice or get it from here.
PGP Key ID: 0x3A9D0BB5
Fingerprint: 5134 EF9E AF65 F95B 6BB1 608E 50FB 9B27 3A9D 0BB5