New engineers lose their first days to missing access, outdated instructions and set-up steps nobody has run on a clean laptop for a year. This guide puts the whole route in order: prerequisites to request before day one, the tools to install, the repositories to clone, the local stack to start and the failures most likely to happen.

The sample follows Havenbrook Digital, a fictional software company with a one-command set-up, a seven-line requirements list, a request-flow diagram and a risk grid of five common failures. Replace the commands, versions, owners and fixes with the ones you have just tested on a clean machine.