Ad-hoc testing environments

[prestoncabe]

Idea:

• typical development is local only
• one-off testing environments could be deployed ad-hoc as needed (automatically at PR creation?)

[prestoncabe]

Started going for it with the codespaces strategy.... initial impressions:

• nice that it is integrated right into github
• very slow to spin up a new codespace... maybe this could be mitigated with "prebuilds"