This site runs on Jekyll with the TeXt theme. New posts go in _posts/
using the YYYY-MM-DD-title.md naming convention - the date in the
filename becomes the publication date. Keep the filename prefix in the
past (or omit date: in the front matter), because Jekyll does not
publish future-dated posts.
Tip: do not set layout: in a post’s front matter unless you know the
theme’s layout names - the site default (article for posts) already
applies from _config.yml.