It's probably worth briefly mentioning a build log solution.

You can really do anything you like within reason and the rules, from a hand-written logbook with photographs to a fully electronic solution.

The CAA in NZ is not particularly prescriptive but states "A photographic record of all areas closed up during construction will also be expected."

A blog has become very popular for recording builds and as a way of forming a community of type-builders and giving and receiving feedback.

I've found the best of both worlds I think, by using Eleventy and Markdown to write my log entries as essentially text files, which are processed automatically on demand into a website which can be hosted anywhere convenient, or simply maintained offline.

Images and video are easily included, and at the completion of the build the markdown files can be rendered into PDF for easy provision to civil aviation authorities.