Are there homemade helpdesk/servicedesk systems in nature?

Question

Helpdesk

The management set the task to abandon the German OmniTracker in favor of domestic software in connection with import substitution. Can you tell me about domestic developers and their products? You do not need opensource solutions, you need a solution with implementation and subsequent support. Oh yes, I almost forgot, the country is Russia :)
Here is what I found:
solutions.1c.ru/catalog/itil
www.terrasoft.ru/service The
question is no longer relevant. The management chooses between naumen and itilium.