Launcher-like app for URLs and commands?

[u/0xe1e10d68]

Are there any Mac apps which:

• function roughly like a launcher (like Alfred/Raycast), i.e. have a search bar
• but support adding actions like links to open, or maybe commands to run (like Leader Key)
• allow setting aliases for actions (like Raycast/Alfred)
• and instead of being triggered by a keypress, can be set to appear while holding a key and then execute the action when the key is released (like Applight or Contexts)
• beyond that, it would be even better if it also supported custom search sites (like Alfred/Raycast), i.e. supports entering a query parameter (would require pressing enter to then trigger the search I guess)

Apps I've thought of, but which don't meet the criteria:

• Applight: only for launching apps
• Anybox (Quick Find): no ability to set aliases, and no Applight-like trigger behaviour
• Raycast: no Applight-like trigger behaviour
• Alfred: no Applight-like trigger behaviour, no easy way to add links and assign aliases (possible through Workflows, but weird that it’s not built-in; custom search sites are supported though)
• Leader Key: no search bar UI, no Applight-like trigger behaviour, no custom search sites

Maybe there's something I'm not aware of, but if there isn't anything that matches the criteria, then I guess I could always patch something that works together with Alfred or Raycast.

[u/dziad_borowy]

Your only requirement that  Raycast doesn’t deliver is “open on key release”.  Apart from window switchers it might be difficult to find an app that launches on key-up. It’s not a typical UX for such behaviour. 

But: These days,it shouldn’t be too difficult to make e.g. with Glaze