Content
Content
Each guide is a self-contained set of notes. Pick one to start reading.
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Go Guide
Learn Go by reading a real distributed-systems codebase — start here for the map and the reading skills.
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Kotlin Backend
A hands-on Kotlin & JVM backend guide for TypeScript and Go developers — every concept shown side by side, with runnable examples.
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Modern Python
A hands-on modern Python backend guide for TypeScript and Go developers — uv, Ruff, ty, FastAPI, async, and Postgres, every concept shown side by side.
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ERPNext & Frappe
A hands-on guide to building and running ERPNext v16+ and the Frappe Framework at scale — for backend developers coming from Node.js.
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Auther: Centralized Auth
A self-hostable OAuth2/OIDC identity provider with a Zanzibar-style permission engine — what it is, and how to integrate it into a real app.
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Vim Motion
Practical Vim motions for people who already live in vim mode (Zed, VS Code) but still fumble on select-and-copy — learn to edit by naming targets instead of selecting them.
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Multi-Tenant on Cloudflare
Turning a single-tenant template into a production multi-tenant SaaS on Cloudflare Workers — topology, tenant isolation, SSO, and operator onboarding.