Blog platform, can be used as headless CMS (ex. with Hexo). Ghost
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
a client-side CMS for editing GitHub Markdown (and other) files
An efficient (micro)blogging service that you can self-host
A platform to fill and sign digital documents. (GNU AGPLv3)
GeoCities for the modern world. (BSD 2-clause)