MacPorts install without root privileges

steps.txt

# fetch MacPorts sources
curl -LO https://distfiles.macports.org/MacPorts/MacPorts-2.8.1.tar.gz

# extract them and get into the dir
tar -jxf MacPorts-2.8.1.tar.gz
cd MacPorts-2.8.1

# configure things
## If you want MacPorts to run in a custom prefix, pass in the following arguments: --prefix=/usr/local --with-unsupported-prefix --with-applications-dir=/Applications
## replacing /usr/local with your desired location
./configure --with-no-root-privileges --with-install-user=$USER --with-install-group=staff --silent

# build and install things, using however many performance CPUs are available
# for older versions of macOS, substitute in `machdep.cpu.core_count`
make -s -j `sysctl -n hw.perflevel0.physicalcpu`
make -s -j `sysctl -n hw.perflevel0.physicalcpu` install

# clean up after ourselves
cd ..
rm -rf MacPorts-2.8.1*

# post-install tasks
## Update ports to latest definitions
port selfupdate

## Edit the config to change any other values that you need, such as setting `buildfromsource` to `always`
### if you passed in a custom prefix via `--prefix`, replace /opt/local with your target prefix.
$EDITOR /opt/local/etc/macports/macports.conf

Isn't infinite jobs = no of cores at a time? Shouldn't need to specify the core

What are you hoping to get out of this thread? The gist we're talking on is a set of notes I wrote down for myself, and specifying the number of cores gives me the behavior I'm looking for.