Squid Notes - Take digital handwritten notes for class, work, or fun with Squid on your Android or Chromebook! Markup PDFs, sign documents & more
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Varnish - High-performance HTTP accelerator
Standard Notes - A safe place for your notes, thoughts, and life's work
nginx - A high performance free open source web server powering busiest sites on the Internet.
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.