Unable to use a `Symbol` for a `Group` with paper.js

I want to do an animation of a reaction-diffusion system with paper.js. Here is a code which generates just one image: <html> <head> <script src=”https://cdnjs.cloudflare.com/ajax/libs/paper.js/0.12.2/paper-full.min.js”></script> <style> canvas { width: 400px; height: 400px; border: black 3px solid; } </style> </head> <body> <script> function subm_index(M, x){ if (x<0) return x+M; if(x >= M) return x-M; return x;…

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Can’t write files to uSD card: looks like they’re created but when I remount the card they’re gone

I can’t seem to create files on my uSD card. No error is given and it looks like the file is there until I unmount and remount the filesystem and then everything is gone. Simplest steps to recreate: Insert uSD card in port cd to mount point (/media/$USER/6139-3562) touch test.txt ls (lists test.txt) cd ..…

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