Based on the So Simple Theme and meant to be integrated with IndieKit as a micropub endpoint.
Using @mmistakes So Simple theme, setup as a gem-based theme with the local overrides to get IndieWeb integration working correctly.
Currently being deployed to Netlify, will look at making this Github Pages compatible by default as well.
IndieKit is an IndieWeb publishing toolkit, written by @paulrobertlloyd.
It is easy to deploy using Heroku. This template already has the proper link headers included, just edit your _config.yml to include the address of your Heroku server.
I ended up hacking the core server of IndieKit. Reading remote config didn't work, checking in a config file to the IndieKit on Heroku did work. Hacked the core templates and defaults file and it works.
Timezone offset can be set on the server by entering in a TZ variable on env vars in Heroku.