This issue recommends pearProject, a lightweight online project/task collaboration system.
PearProject, Pear project management system, a lightweight online project/task collaboration system, currently supports project management, task management, account management, file management, team management and rights management and other functions, suitable for small and medium-sized teams to cooperate with each other.

PearProject features:
Simple and intuitive workbench, flexible and free task Kanban
A highly aggregated task carrier with a global view of resources
Has rich and flexible product development management functions
You can combine functions freely and easily
The separation of front and back end architecture makes the weight of project development move forward
Supports offline privatization deployment

Screen shot:
Log in

homepage

project management

task

Gantt chart

Project overview

team members

system settings

access authorization

Installation and use:
Environmental requirement
PHP >= 7.2.0MySQL >= 5.6.0 (Need to support innodb engine) Nginx/ApachePDO PHP ExtensionRedis(not essential)Composer (not essential)
- Installation steps: Installation Guide (2.8.15) · Language Sparrow

You can read more on your own.
