Summary

Dockerfile now has standalone build instructions.

There are two motivations:

1. I immediately opened the Dockerfile so I could begin hacking. But the instructions therein aren't standalone, and standalone is nice.
2. I wasn't aware there was a "Developing Archivebox" doc. I assumed this would be in the docs, not in the README (which is pretty big).

Related issues

n/a

Changes these areas

• Bugfixes
• Feature behavior
• Command line interface
• Configuration options
• Internal architecture
• Snapshot data layout on disk