Is it possible for a Picotron cartridge to escape Picotron's environment and access files outside Picotron?

Is there any known or unknown API that allows that? Known APIs: https://www.lexaloffle.com/bbs/?tid=140816

Is the embedded Lua language fully sandboxed? Does Picotron utilise solutions mentioned here: https://stackoverflow.com/questions/1224708/how-can-i-create-a-secure-lua-sandbox

Is it safe to run any Picotron cartridge downloaded from the internet?

Is PICO-8 safe to run any cartridge?

I think all Retina screens are affected.

The image is a little bit blurry. The smaller the window is, the more blurriness is visible. But it's blurry even in the full screen mode, just much harder to notice.

In order to compare images you may need to download them and open them in a non-blurring-when-zooming-in image viewer. I think the old good MS Paint zooms image with integer scaling.

Picotron on my MacBook is not pixel-perfect:

PICO-8 on my friend's MacBook is also not pixel-perfect:

Pixel perfect image for comparison, made using a different retro game engine called Pyxel https://github.com/kitao/pyxel