The original public tracker is mostly dead. However, the remaster lives on through:
Here is the honest legal reality:
Purists prefer the fan remaster for color and audio. Casual viewers will be very happy with the official Blu-ray. atla remastered in 1080p link
Several websites and online platforms have shared links to ATLA remastered in 1080p. Some popular options include: The original public tracker is mostly dead
Let me know, and I'll be happy to help!