In particular, it brings in three dropdowns where you pick version of postgres, version of os and platform, and it both filters those based on which are available, and generates instructions that are distro specific (like the Debian download page already does).
For those that don't have a working pgweb instance, I've also attached a screenshot :)
The data to drive them comes from crawling the contents of our ftp directory. It has already been applied, at
