Show HN: A free tool to generate customizable agile retrospective templates (kollabe.com)

After facilitating too many repetitive retrospectives, I built this free tool to generate various retro templates: https://kollabe.com/tools/generate-retrospective-template

It offers standard formats (Mad/Sad/Glad, Start/Stop/Continue) and themed templates to keep teams engaged. No login required, works for remote and in-person teams.

What has your experience been with retrospectives? Have you found certain formats particularly effective for developer teams?