Jago Strong-Wright

This sounds really useful! I kept reusing some code for wall (just with a flat-bottomed domain) and wind stress so I put some bits together in [this package](https://github.com/jagoosw/Walrus.jl) and I...

A way you could do it with a buoyancy tracer is to manually set the tracers like `tracers=(:N, :P, :Z, :D, :b)` and add `T` as an auxiliary field like...

I guess we could also make `T` an optional dependency but it might not be the most straightforward. If we changed the model to be discrete form we could just...

Great, thank you! I'm not sure how to make buildkite run for PRs from forks, I'll try and work it out

And I'll add you to the repo so you can fork here in the future

Okay I've changed the buildkite settings now (although I should probably change them back since now anyone can make a PR and run any code on our server). I think...

Sorry I meant to update here!

~I have had errors like this and found it came from the particle leaving the domain and then the boundary is enforcer moving it back in but it had moved...

> Are we sure we want this? Implementation is obvious but the real question is whether we want. I believe this was omitted by design to clarify reading code. Fine...

I'm not sure how this works for distributed tests but I don't think anything needs to change there