diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,54 +1,12 @@
 # wutzcalc
 
-> ## ⚠️ AI-generated code
->
-> **Every file in this repository was written by an AI coding assistant.** It
-> has not been independently audited or reviewed line-by-line by a human. Before
-> running this in any setting where correctness matters (real money, real
-> events), read the code yourself, test the edge cases that matter to you, and
-> assume there are bugs. Use at your own risk.
-
 Festival drink-sale tracker. See [PLAN.md](PLAN.md) for architecture, [NOTES.md](NOTES.md)
 for the original requirements, and [TODO.md](TODO.md) for deferred work.
 
-## Toolchain setup
-
-Requires Node.js 20+ and pnpm 9+. Native SQLite bindings install from prebuilt
-binaries on x86_64 / arm64 — no compiler needed for most setups.
-
-### Nix (Linux / macOS)
-
-```sh
-nix develop          # node 20, pnpm, sqlite, build deps
-```
-
-### Debian / Ubuntu
-
-```sh
-# Node 20 from NodeSource
-curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
-sudo apt install -y nodejs
-sudo corepack enable             # provides pnpm
-
-# Only needed if a prebuilt better-sqlite3 binary is unavailable for your arch
-sudo apt install -y build-essential python3
-```
-
-### Windows
-
-Install Node.js 20 LTS via the official MSI from <https://nodejs.org> (this
-also installs the optional "Tools for Native Modules"). Then in PowerShell:
-
-```powershell
-corepack enable                  # provides pnpm
-```
-
-Use PowerShell to set env vars on the same line, e.g.
-`$env:ADMIN_PASSWORD="changeme"; pnpm dev:server`.
-
 ## Dev
 
 ```sh
+nix develop          # node 20, pnpm, sqlite, build deps
 pnpm install
 ADMIN_PASSWORD=changeme pnpm dev:server   # http://localhost:3000
 pnpm dev:client                            # http://localhost:5173 (proxies /api, /admin)