Paperless-ngx is a document management system that transforms your physical documents into a searchable online archive so you can keep, well, less paper.
Wallabag is a self hostable application for saving web pages: Save and classify articles. Read them later. Freely.
WordPress is open source software you can use to create a beautiful website, blog, or app.
This project comes as a pre-built docker image that enables you to easily forward to your websites running at home or otherwise, including free SSL, without having to know too much about Nginx or Letsencrypt.