The discussion revolves around an individual who has created a new operating system kernel (TacOS) that utilizes UNIX-derived concepts to successfully run a port of the classic game DOOM. The user reports good performance from their implementation and is eager to gather feedback. Commenters express admiration for the achievement and suggest creative ideas such as configuring the OS to exclusively boot into DOOM or enabling other games to run off a USB boot loader. This shows a growing interest in personalized operating systems and retro gaming.