https://www.reddit.com/r/selfhosted/comments/1282l0y/best_opensource_it_ticketing_system/
best opensource IT ticketing system : r/selfhosted
Mar 31, 2023 ... Including CRM, helpdesk, projects, and way tons more. Free or paid, onprem or hosted. - GLPI: Helpdesk, CMDB assets, Business mgmt, Projects.