I wanted to share Algebrica with those who have recently started following me. Algebrica is an open, free, distributed, and completely ad-free Mathematical Knowledge Base. All entries are available on the web and can also be downloaded directly from the website or from the GitHub repository, together with editable SVG images. Everything can be freely reused. If you find the project useful, sharing it would help me enormously in making free and open mathematical knowledge more accessible on the internet. Thank you! algebrica.org