matt.b.morin@protonmail.com
Fastest response. Usually within a day.
contact
Let's talk.
Honest first replies, no 40-email scheduling. Tell me the shape of your problem and I'll tell you whether I can help — and if not, usually who can.
Matrix
@matt:matrix.org
If you prefer chat over email thread.
GitHub
@matthieu42morin
For OSS questions and collaborations.
/in/mattmor-in
For recruitment or longer-running contracts.
PGP
If it's sensitive — security work, contracts, secrets — encrypt it. My public key is on keys.openpgp.org, or just ask me for it in plain email and I'll point you at the signed copy.