A maintainer and a teammate working in one repository, with the branch
churn of an ordinary week.

## alice

You lead a small service, `inventory`. Create the repository with a README
and `app.py` holding a function `total(items)` that sums item prices.
Make a long-lived `develop` branch from `main`. Your teammate {carol} will
work in this repository directly, not from a fork: give them what they
need to push branches and merge pulls here.

## carol

{alice} has given you access to their `inventory` repository. On a new
branch off `develop`, add a function `count(items)` to `app.py` and open a
pull into `develop`. Then add a second commit on the same branch that
documents `count` in the README, and check the pull now brings in both
commits.

## alice

The team has decided to stop using `develop` and to call it `next`
instead. Make that so in `inventory` without losing anything: open pulls
that targeted `develop` should target `next`. Check {carol}'s pull still
merges cleanly, then let them know.

## carol

{alice} renamed a branch in `inventory`. Check your pull is pointed where
it should be, then merge it yourself and check the result on its target
branch.