There is a new release of sn_httpd: 0.3.13
Binaries: Release v0.3.13 · traktion/sn_httpd · GitHub
Docker: https://hub.docker.com/r/traktion/sn_httpd
This version primarily improves caching performance, where there was a bug which was causing huge latency for cached data items. In short, live network lookups were being done for non-existent data items, which then (inevitable) returned no data, but choked up the web server.
With the latest fixes, some requests were taking 5-15s to return a 304 (which tells the browser to use its cached version). With this latest version, that is reduced to a handful of milliseconds! It makes loading cached content pretty much instant.
Obviously, fresh content still needs to be downloaded, but the Javascript, fonts, CSS, archive indexes (which list blog files), etc, often seldom or never changes. Obviously, it depends on the application, but it makes a huge difference for IMIM!