Worth borrowing
The shape of it: a near-empty flake.nix, and every feature in a file of its own.
The personal infrastructure of the person who first wrote up the dendritic pattern, and the reference for what one looks like in practice.
Read it alongside the pattern’s own write-up and The Brewhouse’s dendritic page. flake.nix hands everything under modules/ to flake-parts via import-tree, so the interesting part is how features are split up rather than how any one machine is built.