demo: https://siteelm.netlify.com/ (source)

It's just another static site generator for Elm, but has some features.

• you can write YAML in preamble sections
• in a preamble, you can load external YAML files
• it's easy to mix dynamic Elm components
• simple rules to use

to make a template, what you need to do is writing preamble models, their decoder, and two functions return Html Never (for HEAD and BODY)

% npm install -g elm
% npm install -g siteelm

or if you'd like to do everything locally,

% npm install -D elm siteelm

in this case, type "% npx siteelm 〜" instead of "% siteelm 〜"

% mkdir mysite
% cd mysite
% siteelm init

Then you'll see a scaffold in the directory.

% cd mysite
% siteelm server -d

Then access "http://localhost:3000/"
The server supports file watching and auto reloading. If you don't need the server, use siteelm watch instead.

% cd mysite
% siteelm make -o