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I recommend getting the newer version from rei's GitHub that I have linked above due to this uploaded version of Amalgam being outdated.

Yes. Even though it and every other popular and work-in-progress cheat are undetected by VAC right now, it is still recommended that a bypasser be used as precaution.

VirusTotal.com Link: https://www.virustotal.com/gui/file/84e387590de58f488918a5a79822435cacf50f157579255fe9866bf021647e6e Amalgam by Rei Configs are stored in C:\Program Files (x86)\Steam\steamapps\common\Team Fortress 2\Amalgam Github: https://github.com/rei-2/Amalgam VAC bypass recommended