Software Engineer in the Netherlands 🇳🇱 (born in Barcelona)
aka jjba23, Joe

Hacking away, spreading free software (as in freedom) and writing Lisp, Haskell, Scala, Rust, Guix, Nix, loving Emacs and GNU/Linux systems

Playing guitar

I am a research group leader at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. My interests are population genetics and human history. My group uses genetics and ancient DNA to investigate the human past.
Also, I like Haskell and functional programming!
I post in English and occasionally in German

programmer.

Interested in augmentation

Ocaml
Haskell
Racket

Postdoc at Purdue ON ACADEMIC JOB MARKET for 2026. PhD in CS. Programming languages and compilers. Julia, Haskell.

A programmer from Aotearoa (otherwise known as New Zealand). I have also lived in China but I'm back now.

i like terepi and homestuck 👍 ¦ i like math and computers and computer math ¦ all posts come with a 3 year warranty as well as free customer support ¦ #racket, #rust, #sbcl, #lean4, #elixir, #haskell-pilled—i just like programming languages okay

ADHD aphant amateur-generalist

🧑‍🎓: 🧙SmartLogic AKS 🌷Tulip 🏛️MIT

🧑‍🔧: #shell #ruby ⚗️ #elixir #k8s

🧑‍🏫: #rust #nix #wasm #haskell?

Haskell, recurse center, swedish, unicycle
formerly a Bible reading Christian, no longer comfortable associating myself with that name.
The most selfish thing I can do is to build up others. Our world is so tightly connected, building up others is building up myself.

Author 20+ books, mostly on AI, LLMs, deep learning, semantic web, Lisp. 50+ patents. My books are free to read (or buy DRM free copies) online https://leanpub.com/u/markwatson

CTO at satoshi-connect.ch.
@bebop ambassador.

I’m curious and passionate about free software, decentralized systems and decentralized finance. I’m interested in Haskell, Nix, Rust but also embedded systems, radio comm ops and the occasional math paper.

In my free time, I contribute to open source projects, promote blockchain-based solutions to real-world problems or study RF signals around me.

I also *really* like trains :)

Software engineer. Mathematics major. All programming languages are bad.

In free time, game developer; main titles: #AAAAXY, #Xonotic, #Nexuiz.

Super Mario Maker troll fan (i.e. I enjoy watching streamers suffer).

Primary: @divVerent

Haskell. Gopher.

I like programming using nice languages like OCaml, Haskell, F# and IO and I try to draw, with spray on walls.

Programmer, TTRPG'er, hobbyist of a million varieties...

Currently hyper-fixating on contributions to 2009scape, working on homelab stuff, and haskell 🙃

Header photo credit: Josan Gonzalez
Pfp credit: Jaki Martinez

Student F# and Haskell

PhD student at IMDEA Software
Working on Refinement Types and Liquid Haskell
I like when programs are proofs

Internet software developer

#NixOS #Rustlang #XMPP #IPv6 #noPHP #carfree #Dresden #searchable #FediBuzz

Software developer, #FP, #Scala, #Kotlin, #JVM, #Haskell enthusiast; contributor to https://alexn.org, https://monix.io, https://typelevel.org.

🌍 #Bucharest, #Romania

he/him #haskell #categorytheory #lumatone

I mostly pouet about software development, do bad puns, and troll acquaintances. Also #haskell, #nix, #rust and alikes.

My main achievements : I have a most likely sane teenager, and I've completed all 3 saves of The Binding of Isaac Repentance.

Currently freelance at the French NAP: https://transport.data.gouv.fr

#rstats primarily but learning #haskell, #julia, #rust, #python, #APL, #lisp, and many others

Also learning Japanese 🇯🇵

Happy to also talk #chess, #woodwork, #biotech, #physics, and lots more

Working remotely from Adelaide, South Australia