First install Termux
Then there are two options:
Open the Termux terminal on your Android device and copy-and-paste the commands listed below and hit ENTER:
apt update;\
apt install -y git golang make;\
export GOPATH=$HOME/go;\
export PATH=$PATH:$GOPATH/bin;\
go get github.com/magefile/mage;\
go get -d github.com/gohugoio/hugo;\
cd $GOPATH/src/github.com/gohugoio/hugo;\
mage vendor;\
mage install;\
hugo server -s docs;
Now you can point a browser at http://localhost:1313 and you should see the Hugo site with docs and all.
apt update;\
apt install curl;\
curl -L https://github.com/spf13/hugo/releases/download/v0.20/hugo_0.20_Linux_ARM.tar.gz | tar zxf -