The Core Should Know Nothing

Thu, 18 Jun 2026 00:00:00 +0000

In Three Rewrites there was a sentence I glossed over:

Hooks before and after every action — logging, dry-run, error context, all without touching the core.

Half a sentence. But that’s exactly where the third attempt ended up. Today I want to unpack that one line. It’s going to be longer.

What a hook is

A hook is a function I slip in before or after an action. ensure, delete, start, stop — every action incus-compose runs on a resource can be intercepted. Before and after.

Three Rewrites

Mon, 08 Jun 2026 00:00:00 +0000

I hate spaghetti code. Warzone 2100, among other things, showed me why back in 2011. C code, globals everywhere. You change one variable and three things break that seem to have nothing to do with it. You read the code and can’t tell where a decision begins and where it ends.

For three years — from 2022 to 2025 — I worked on go-orb. Alone. A framework for distributed systems, meant as the successor to go-micro. Config from anywhere, service discovery, RPC, streaming, pub/sub, kvstore, metrics. Every new idea became a feature, every feature a plugin.

Incus-Compose on jochum.dev

The Core Should Know Nothing

What a hook is

Three Rewrites