Elasticsearch: The Definitive Guide
- A guide to working with Elasticsearch by Clinton Gormley and Zachary Tong.
Head First Design Patterns
- A book that expains software design patterns.
- A book about Git by Scott Chacon and Ben Straub.
The Linux Command Line
- A book about by William Shotts.
The Tangled Web — Securing Web Applications
- A book about securing web applications by Michal Zalewski.
- A book about computation theory by Tom Stuart.
- A book about creating Vagrant environments by Erika Heidi.
Task management/To-do lists
Money, Budgeting and Management
Collaborative software or groupware suites
Web-based project management and bug tracking systems
Self hosted project management, invoicing, and collaboration. Duet provides ever ...
Check out Duet
An open, extensible, wiki for your team built using React and Node.js.
Check out Outline
Custom communication systems
Zulip is a powerful, open source group chat application.
Check out Zulip