How to create a package written in Go

[jean franco osvarcha]

Hello guix users.

I wanted to package the program nwg-look to edit my theme icons and others 
through a graphical interface because I am currently using Tiling Window 
Manager.
nwg-look is written in GO and its repository is at 
[[https://github.com/nwg-piotr/nwg-look]], theoretically its compilation is 
simple because you only have to do one:

-make build
-sudo make install

and reading the Makefile I can also do this manually:

build:
go build -v -o bin/nwg-look .

install
mkdir -p $(DESTDIR)/usr/share/nwg-look
mkdir -p $(DESTDIR)/usr/share/nwg-look/langs
mkdir -p $(DESTDIR)/usr/bin
mkdir -p $(DESTDIR)/usr/share/applications
mkdir -p $(DESTDIR)/usr/share/pixmaps
cp stuff/main.glade $(DESTDIR)/usr/share/nwg-look/
cp langs/* $(DESTDIR)/usr/share/nwg-look/langs/
cp stuff/nwg-look.desktop $(DESTDIR)/usr/share/applications/
cp stuff/nwgg-look.svg $(DESTDIR)/usr/share/pixmaps/
cp bin/nwg-look $(DESTDIR)/usr/bin

Which you could do this manually but it is not suitable in SDGuix.
Reading the documentation in the Manual and the Cookbook I could only rely on 
small sample examples to which I could come up with this ~nwg-look-osv.scm~ 
file.

(use-modules (guix licenses)
(guix utils)
(guix packages)
(guix download)
(guix build-system go)
(gnu packages golang)
(gnu packages xorg)
(gnu packages gtk)
(gnu packages pkg-config))

(package
(name "nwg-look-osv")
(version "0.2.4")
(source (origin
(method url-fetch)
(uri (string-append "https://github.com/nwg-piotr/nwg-look/releases/download/"; 
"v" version "/nwg-look-v" version "_x86_64"
".tar.gz"))
(sha256
(base32
"1iphamazdsvl1cp59y8sxa3iswradna6z6rmm25nmpy3nxxbkapc"))))
(build-system go-build-system)
(synopsis "This application is a part of the nwg-shell project")
(description
"GTK3 settings editor adapted to work in the wlroots environment")
(home-page "https://github.com/nwg-piotr/nwg-look/";)
(arguments
'(#:import-path "https://github.com/nwg-piotr/nwg-look/";))
(inputs
(list go
gtk+
xcur2png
pkg-config))
(license gpl3+))

But I can't get it to compile and install, if I do it manually in a ~guix shell 
go gtk+ xcur2png pkg-config~ and compile it on my own it does but I don't know 
how to install it and create the manifest.
I don't have much notion in Go and packaging in Guix, but I guide from all the 
examples of others packages, I tried to do it with trivial-build-system but it 
was messing me up, if anyone has a help or comment I'm happy to answer.

Sorry for my english I'm using a translator DeepL