After installing an extension, uLauncher provides it with a simple way to configure its parameter.
For example, file search looks like this:

The little improvement I suggest is to include there a link to the "github repo" of the extension, specifically: make the extension name "click

• → vs Alt + → on directories (show hidden)
• → vs Alt + → on Rhythmbox artists (show songs instead of show albums)
• Time format in Run with delay
• Ignoring accents in search
• https://github.com/kupferlauncher/kupfer/wiki/Tips

• Description: [Enter what you did and what happened]
• Version: 1.4.8
• OS: Windows-10-10.0.18362-SP0 (64-bit)
• Type: <class 'OverflowError'>
• Value: argument 2 overflowed: value must be in the range -2147483648 to 2147483647
• Traceback:

  File "cddagl\ui\views\main.py", line 3512, in step

When downloading or uploading, the number of connections is displayed. It should be changed to the number of players a user is currently connected, regardless of the current number of connections.

That's an easy task for someone that would like to help and knows a bit of python

Currently each program executes on the launcher's console itself, make it such that each executed program executes in it's own console. Hint: execute python file from python. But you see what fits in.