i'm a technologist at large in erlangen, germany.i work independently at the intersection ofdeveloper experience,programming languages, andtechnical due diligence.i also have vast experience insecurity andnetworking, where i spend a lot of my professional engagements.

i live for expressive systems and delightful abstractions. this has often ledme to lisp and smalltalk.

• glamorous toolkit: a moldable development environment.i contribute to the core, build the llm integration (gt4llm), documentation, and various language integrations.
• carp: a statically typed lisp for realtime applications.i contributed the macro system as well as various core macros (setf, quasiquoting, string formatting etc.), stdlib things, and compiler ergonomics.you can find more of my work over atthe carpentry.

• sbcli: a repl for sbcl that doesn’t suck. built to improve my interactive lisp experience outside of an editor.
• microml: a minimalist ml-style language compiler and interpreter in under 750 lines of python.
• mae: maps are everything.
• compfuck: a brainfuck compiler written in carp macros that runs entirely at compile time.an exploration of compile-time evaluation and language minimalism. if you’re fancy, think of it as futamura projections.
• cspfuck: brainfuck with actors, written in c, without dependencies, with a x86 jit.
• cj: a dependency-free jit framework for c, with backends for x86 and arm64.

• systems that are moldable, inspectable, and useful
• tooling that respects our time and attention
• speaking & writing about the things we do, because i love teaching & learning

blog,website,talks & writing

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1. feenkcom/gtoolkitfeenkcom/gtoolkitPublic

   Glamorous Toolkit is the Moldable Development Environment. It empowers you to make systems explainable through contextual micro tools.

   Smalltalk 1.5k 64

2. carp-lang/Carpcarp-lang/CarpPublic

   A statically typed lisp, without a GC, for real-time applications.

   Haskell 5.8k 180

3. programming-talksprogramming-talksPublic

   Awesome & interesting talks about programming

   Python 7.3k 509

4. eePublic archive

   A dead simple editor

   C 454 22

5. cspfuckcspfuckPublic archive

   Brainfuck with Actors

   C 36 3

6. sbclisbcliPublic

   A REPL for my SBCL needs

   Common Lisp 104 14