mksh shell tested in a terminal
man mksh works
No Linters Available
No Unit Test Coverage
There's also https://dev.solus-project.com/D2755 which copies an example file as documentation.
Did you find that glibc-devel was not in the default solbuild image and needed to be listed?
That would be a great concern
Always use 5 octal i.e. 00755 (this applies to all lines)
Shells have typically been installed to /bin
I'm not sure what the value is of this