Why should I use a sudo alternative?

From your example, I have a hard time inferring what is it doing.

--single-branch

I’m on Linux and a prebuit PC would be a nice change. But at the same price or lower than Windaube, since I don’t want a licence for them.

I will prefer to build myself rather than paying an extra k…

Yup, pull requests are an invention from git’s servers (I think github came up with that first). The built in way (famously used by the linux kernel) is git-send-email.