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This tutorial will show you the fundamental keyframing techniques and settings needed to create an animated GIF. Part 2 will demonstrate how to use Photoshop to create the GIF itself

Using perlin noise is a really interesting way to create wonderful natural effects. p5.js has plenty of examples of this, such as here:

https://p5js.org/examples/math-noise-wave.html

I'd also really recommend Daniel Shiffman's tutorials on the subject:

https://www.youtube.com/watch?v=Qf4dIN99e2w

This is easily done, you've zipped up your site to upload to a server and pushed to GitHub, you then get an error message like this:

remote: error: File Archive.zip is 214.15 MB; this exceeds GitHub's file size limit of 100.00 MB

...

 ! [remote rejected] master -> master (pre-receive hook declined)

error: failed to push some refs to ...

This helpful page from github has a solution. The steps are also below: