Cannot install moustachu in Nim 2 (plus workaround - see comment)

[some-avail]

I use Moustachu for my Nim-apps so help would be appreciated...
I work with nim 2.02
Cannot install moustachu on my new second-hand laptop (Linux Mint 21.2), getting the following report:

nimble install moustachu
Downloading https://github.com/fenekku/moustachu.git using git
Verifying dependencies for moustachu@0.14.0
Installing commandeer@>= 0.10.4
Downloading https://github.com/fenekku/commandeer using git
Verifying dependencies for commandeer@0.12.3
Installing commandeer@0.12.3
Success: commandeer installed successfully.
Installing moustachu@0.14.0
Building moustachu/moustachu using c backend
/home/bruik/.nimble/pkgs2/commandeer-0.12.3-52e6d41a38d9737f38928d8e30c02c49241e2ffe/commandeer.nim(2, 8) Error: cannot open file: parseopt2
Prompt: Build failed for 'moustachu@0.14.0', would you like to try installing 'moustachu@#head' (latest unstable)? [y/N]

I have tried above option but it fails aswell:

Answer: Downloading https://github.com/fenekku/moustachu.git using git
Verifying dependencies for moustachu@0.14.0
Info: Dependency on commandeer@>= 0.10.4 already satisfied
Verifying dependencies for commandeer@0.12.3
Installing moustachu@0.14.0
Building moustachu/moustachu using c backend
/home/bruik/.nimble/pkgs2/commandeer-0.12.3-52e6d41a38d9737f38928d8e30c02c49241e2ffe/commandeer.nim(2, 8) Error: cannot open file: parseopt2
Tip: 19 messages have been suppressed, use --verbose to show them.
nimble.nim(229) buildFromDir
Error: Build failed for the package: moustachu

[some-avail]

Apparently parseopt2 is a deleted nim-module in Nim 2, while Commandeer is still using it. Hence the installation fails. Updating it to parseopt might do the trick (?)

[some-avail]

For the impatient one can use the following workaround to install it:
-activate an older version of Nim, so run: choosenim 1.6.18
-install moustachu with this older version, so run: nimble install moustachu
-switch back to the latest Nim, so run: choosenim 2.0.2

Apparently the installation of Moustachu is not version-dependent..
By the way I forgot to thank Fenneku and others to contribute this nice lib !!!