Benji Visser

I'm Benji, an infrastructure-focused software engineer. Founded and sold a startup (YC S23). Now doing fractional CTO and AI infrastructure consulting at 093b.org and co-founding Frontier HSA. Interested in philosophy, history, crypto, financial plumbing, and computers. Based in Prince Edward County, Ontario. Reach me at benji@093b.org.
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contributions1.6k
commits68
pull requests444
issues141
stars18

Posts

January 18, 2026Writing a Softmax Kernel From Scratch
January 14, 2026Think Harder Before Picking an S3 Storage Class
January 7, 2026MLS: a Governance Problem Masquerading as a Tech Problem
December 25, 2025The New Lombard Street by Perry Mehrling
December 15, 2025Dominion: How the Christian Revolution Remade the World by Tom Holland

Books

Cover of The Tyranny of Words
The Tyranny of Words
Stuart Chase
December 27, 2025
Cover of The New Lombard Street
The New Lombard Street
Perry Mehrling
December 25, 2025
Cover of Dominion: How the Christian Revolution Remade the World
Dominion: How the Christian Revolution Remade the World
Tom Holland
December 15, 2025
Cover of Something to Do with Paying Attention
Something to Do with Paying Attention
David Foster Wallace
June 9, 2025

Projects

2025S3 Lifecycle Policy SimulatorCompare AWS S3 lifecycle policies and calculate storage costsaws, s3, cost
2025CLEOpen standard for communicating lifecycle events for software and hardware componentsstandard, lifecycle
2025reverbMake Spotify playlists based on your birth yearspotify, music
2024bumpgenTUI for upgrading packages using LLMs, ASTs for code relationships, and DAGs for task dependenciesllm, ast, upgrades
2023xeolEnd of Life (EOL) detection for container images and filesystemssecurity, containers
2018generatedDetect files that have been generated by computersdetection, automation
2018pull-request-sizeGitHub Action to label PRs based on their sizegithub, automation
2016gucciTemplating on the command line with spriggolang, templating