I often have to access some pieces of data, e.g. my public ssh keys, ips of specific servers, links to repositories etc.
It would be great to have some application to store key-value mapping with fuzzy search that I could invoke with a system-wide hotkey and copy result into clipboard.
As an example: I press fn+S, search bar appears, I start typing "ssh" and list of my ssh keys appear, I select one of them with arrow keys, press Enter and value is copied into clipboard, now I can paste it where needed.