a821 [1] filed a deletion request for runner [2]: Orphan. Package have been broken since submission by developer (and no developed anymore). The PKGBUILD creates an empty package, but uses "sudo" to copy files to the system.
The program itself doesn't look useful (look at the source code). It's just a bash wrapper to open files depending on the file extension AFAICT. [1] https://aur.archlinux.org/account/a821/ [2] https://aur.archlinux.org/pkgbase/runner/