I've been taking a stab at this same problem (personal knowledge management) myself and I have to say I am very impressed with your implementation! I look forward to using this. Thanks for sharing!

I had similar thoughts, and was pleased to find that the `!` prefix allows you to place the bang anywhere in the query so I tend to slip it in at the end (which feels more natural to me).

Your links include the closing quotes for those clicking in a browser. Fixed links:

Which is a perfect example for ambient sound [1]

For an example of acid techno music [2]

A doom "port" rendered in a single shader including music [3]

[1] https://www.shadertoy.com/view/4ts3z2

[2] https://www.shadertoy.com/view/ldfSW2

[3] https://www.shadertoy.com/view/lsSXzD

Sorry/Thanks... apparently one should not quote URLs on HN.