TurnKey GNU/Linux | 100+ free ready-to-use system images for virtual machines, the cloud and bare metal

Redmine

Integrated SCM & Project Management

((OTRS)) Community Edition

Ticket Request System

GitLab

Self Hosted Git Management & DevOps Toolchain

Bugzilla

Bug Tracking System

SiT!

Support Incident Tracker

ProcessMaker

Workflow & BPM software

Tracks

Getting Things Done (GTD) Application

iceScrum

Agile collaborative development

Trac

Integrated SCM & Project Management

Roundup

Issue Tracking System

Mantis

Bug Tracking System

Sahana Eden

Humanitarian platform

Collabtive

Open Source Project Management

Gitea

Git with a cup of tea!

Faveo Helpdesk

Open Source Helpdesk & Support Ticketing

Leantime

Project Management System

Works With

In my experience, the best source for appliances is TurnKey Linux

I-Programmer (source)

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100+ ready-to-use solutions: discover and leverage the best free software. Deploy solutions quickly on bare metal, virtual machines, or in the cloud.
Free as in speech: free software with full source code and a powerful build system. Free of hidden backdoors, free from restrictive licensing and free to learn from, modify and distribute.
Secure and easy to maintain: auto-updated daily with latest security patches.
1-click backup and restore: smart backup software saves changes to files, databases and package management to encrypted storage which servers can be automatically restored from.
It just works: designed for ease of use, built and tested collaboratively by the community.
Based on Debian "stable": TurnKey version < - > Debian version matrix
Support: We pride ourselves on the support we provide via the TurnKey Hub (Hub support is provided with the paid Hub plans). Free "getting started" support is available on all new Hub accounts during the free trial period. Please reach out if you wish to discuss paid support for on-premises/non Hub deployments. "Best effort" free support is always available via the TurnKey forums.

Read more about Benefits

Turnkey GNU/Linux is a free Debian based library of system images that pre-integrates and polishes the best free software components into secure, easy to use solutions.

TurnKey is inspired by a belief in the democratizing power of free software, like science, to promote the progress of a free & humane society. Without the freedom to freely distribute, tinker and learn from free software the Internet as we know it would not exist. Free software is the silent, often invisible power behind the greatest technological marvel of our era.

At the time of writing Debian, the largest GNU/Linux distribution has over 37,500 packages in its software repositories. The free software movement has collectively created a treasure trove of software that anyone is free to use, distribute, modify and learn from.

Unfortunately, much of this treasure is locked away because too few know about it and even fewer have the skills to take full advantage of it. Imagine how much good we could do if changed that. That's our vision and we invite you to join the mission.