Related technical slides. Not part of an installation.

The slides reflect ideas at the time they were presented. They are not formal
technical documentations and can be outdated. For the latest and accurate
documentation, see comments in code and the formal `doc`, and `help/internals`
directory.

`.md` format slides are rendered using [Marp](https://yhatt.github.io/marp/).
Some of them use extra features added by [a fork](https://github.com/quark-zju/marp).