Stack

Bun

Fast enough that I stopped checking benchmarks. Node compatibility is good enough that I haven't hit a wall.

TypeScript

Strict mode, every project, no exceptions. If you're writing agentic code, you want every type-level guarantee you can get.

Python

Still where the ML ecosystem lives. I use it for evals and ad-hoc data work, less for production glue.

Claude Code

My primary coding agent. Long-context, good at staying inside the project, doesn't over-edit.

Cursor

For the inline-edit cases where I want a faster loop. Works alongside Claude Code, not instead of it.

Claude (Opus + Sonnet)

Opus for hard reasoning, Sonnet for everything else. Default to Sonnet, escalate when it stalls.

GPT-4 / GPT-5 family

I keep one of these wired in as a second opinion. They diverge often enough to be useful.

VS Code

Boring default. Vim mode on, extensions off. The agent does most of the editing now anyway.

Ghostty

The terminal I default to. Fast, sane defaults, GPU-rendered.

Zed

On the rotation when I want a leaner editor for writing. Not my daily driver yet.

Cloudflare Pages + Workers

Default for static sites and edge functions. The cold-start argument died years ago — this is where I host.

Supabase

Postgres I don't have to babysit. Auth + storage + vector all in one. Good default for prototypes that survive.

Cloudflare R2

S3-compatible object storage with no egress fees. Where I dump evals, datasets, model artifacts.

Substack

For the field notes. I don't love the on-platform discovery, but the writing-and-sending workflow is unbeaten.

Notion

Atlas drafts live here. The export pipeline isn't great, but the editing flow makes up for it.

Gumroad

For selling the paid tier of Atlas. Simple, low-overhead, doesn't demand a separate checkout to maintain.