heliosian/docs/setup.md

Dev environment setup

Development happens on macOS. Two Homebrew installs, and everything in docs/dev.md and docs/screenshots.md works:

brew install go
brew install --cask google-chrome

• Go 1.26 or later — builds and runs the server and all tooling (go run, go vet).
• Google Chrome — launched headless by the screenshot tool; never needs to be opened by hand. The tool finds it in its standard install location automatically.

No Node, no Docker, and no cloud credentials are needed for local development.