I'm Max Bernstein.

I am a human and programmer. I like to read books, take photos, and ride bikes in the hills near my house. I tweet things about bread, legumes, and compilers. Though my official title is Chief Potato, I work at Instagram as a software engineer. I’m also teaching CS 50ISDT this fall at Tufts.

You can email me if you so desire. I’m happy to talk about education, programming languages, cycling, and more.

I like making things.

That’s probably an understatement. Here are some of my favorite projects:

• Cinder, Instagram’s performance-oriented fork of CPython
• Skybison (fork of original), Instagram’s performance-oriented greenfield implementation of Python
• An Lisp to x86-64 compiler I wrote in C and accompanying blog posts
• The term paper I wrote for COMP 117 IDS analyzing Dat and the Beaker browser
• Reason, a compiler front-end and toolchain for OCaml
• The final project spec [PDF] and reference implementation (2016) and independent project spec [PDF] (2016) for the data structures course I TA’ed
• A distributed ray tracer (2015) that I made with friends for a concurrent programming course, with the final writeup [PDF]

I kind of maintain a blog.

It’s not very interesting just yet. Things are happening.

Sometimes I contribute to open source projects.

• Cinder
• Skybison (fork of original)
• YJIT (#58, #59), which now lives in upstream Ruby
• CPython (bpo-36929, bpo-38648, bpo-42065, bpo-42199)
• Pyre (Refactor protocol inference)
• Clang (rC345558)
• Reason