VHS demo: POSTED from https://x.com/__r17x/status/1744181636504449492?s=20

vhs.tape

# VHS documentation
#
# Output:
#   Output <path>.gif               Create a GIF output at the given <path>
#   Output <path>.mp4               Create an MP4 output at the given <path>
#   Output <path>.webm              Create a WebM output at the given <path>
#
# Require:
#   Require <string>                Ensure a program is on the $PATH to proceed
#
# Settings:
#   Set FontSize <number>           Set the font size of the terminal
#   Set FontFamily <string>         Set the font family of the terminal
#   Set Height <number>             Set the height of the terminal
#   Set Width <number>              Set the width of the terminal
#   Set LetterSpacing <float>       Set the font letter spacing (tracking)
#   Set LineHeight <float>          Set the font line height
#   Set LoopOffset <float>%         Set the starting frame offset for the GIF loop
#   Set Theme <json|string>         Set the theme of the terminal
#   Set Padding <number>            Set the padding of the terminal
#   Set Framerate <number>          Set the framerate of the recording
#   Set PlaybackSpeed <float>       Set the playback speed of the recording
#   Set MarginFill <file|#000000>   Set the file or color the margin will be filled with.
#   Set Margin <number>             Set the size of the margin. Has no effect if MarginFill isn't set.
#   Set BorderRadius <number>       Set terminal border radius, in pixels.
#   Set WindowBar <string>          Set window bar type. (one of: Rings, RingsRight, Colorful, ColorfulRight)
#   Set WindowBarSize <number>      Set window bar size, in pixels. Default is 40.
#   Set TypingSpeed <time>          Set the typing speed of the terminal. Default is 50ms.
#
# Sleep:
#   Sleep <time>                    Sleep for a set amount of <time> in seconds
#
# Type:
#   Type[@<time>] "<characters>"    Type <characters> into the terminal with a
#                                   <time> delay between each character
#
# Keys:
#   Escape[@<time>] [number]        Press the Escape key
#   Backspace[@<time>] [number]     Press the Backspace key
#   Delete[@<time>] [number]        Press the Delete key
#   Insert[@<time>] [number]        Press the Insert key
#   Down[@<time>] [number]          Press the Down key
#   Enter[@<time>] [number]         Press the Enter key
#   Space[@<time>] [number]         Press the Space key
#   Tab[@<time>] [number]           Press the Tab key
#   Left[@<time>] [number]          Press the Left Arrow key
#   Right[@<time>] [number]         Press the Right Arrow key
#   Up[@<time>] [number]            Press the Up Arrow key
#   Down[@<time>] [number]          Press the Down Arrow key
#   PageUp[@<time>] [number]        Press the Page Up key
#   PageDown[@<time>] [number]      Press the Page Down key
#   Ctrl+<key>                      Press the Control key + <key> (e.g. Ctrl+C)
#
# Display:
#   Hide                            Hide the subsequent commands from the output
#   Show                            Show the subsequent commands in the output

Output vhs.gif

Require echo
Require nix
Require fish

Set Shell "fish"
Set FontSize 32
Set Width 1200
Set Height 600

Type "echo 'Welcome to VHS! and I run VHS recursively'" Sleep 500ms  Enter


Type "echo 'Output rec.vhs.gif' > rec.vhs.tape" Sleep 250ms Enter
Type "echo 'Require echo' >> rec.vhs.tape" Sleep 250ms Enter
Type "echo 'Require nix' >> rec.vhs.tape" Sleep 250ms Enter
Type "echo 'Require fish' >> rec.vhs.tape" Sleep 250ms Enter
Type "echo 'Set Shell "fish"' >> rec.vhs.tape" Sleep 250ms Enter
Type "echo 'Set FontSize 32' >> rec.vhs.tape" Sleep 250ms Enter
Type "echo 'Set Width 1200' >> rec.vhs.tape" Sleep 250ms Enter
Type "echo 'Set Height 600' >> rec.vhs.tape" Sleep 250ms Enter
Type "echo 'Sleep 10s' >> rec.vhs.tape" Sleep 250ms Enter

Type "nix run nixpkgs#vhs "rec.vhs.tape"" Sleep 100ms Enter
Sleep 150s
Type "nix run nixpkgs#cowsay "'Done! anyways'"" Sleep 100ms Enter
Sleep 15s