Everything done on Debian 12.11

Add following to your .bashrc and restart session:

export PS3DEV=/usr/local/ps3dev
export PSL1GHT=$PS3DEV

export PATH=$PATH:$PS3DEV/bin
export PATH=$PATH:$PS3DEV/ppu/bin
export PATH=$PATH:$PS3DEV/spu/bin

As root:

apt install autoconf automake bison flex gcc libelf-dev make \
    texinfo libncurses5-dev patch python-is-python3 subversion wget zlib1g-dev \
    libtool libtool-bin python-dev-is-python3 bzip2 libgmp3-dev pkg-config g++ libssl-dev \
    clang git unzip

mkdir /usr/local/ps3dev
chown root:your_user /usr/local/ps3dev
chmod g+w /usr/local/ps3dev
git clone https://github.com/ps3dev/ps3toolchain
cd ps3toolchain
./toolchain.sh

In case of wget errors, check this PR: https://github.com/ps3dev/ps3libraries/pull/69

Source of information: https://www.psx-place.com/threads/compiling-open-source-ps3-toolchain-nowadays-in-2020.30030/page-3#post-249969

Following steps are from standard user perspective:

git clone https://github.com/wargio/ps3soundlib
cd ps3soundlib
make
cd ..

git clone https://github.com/wargio/tiny3D
cd tiny3D
make
cd ..

Source: https://github.com/aldostools/IRISMAN/issues/88#issuecomment-1433092557

Second unzip asked me if I wanted to replace libzip.a. I went with “no”.

mkdir unrar-ps3
cd unrar-ps3
wget "https://github.com/aldostools/IRISMAN/files/10756424/include.zip"
wget "https://github.com/aldostools/IRISMAN/files/10756454/lib.zip"

cd $PS3DEV/portlibs/ppu/include/
unzip ~/unrar-ps3/include.zip

cd $PS3DEV/portlibs/ppu/lib/
unzip ~/unrar-ps3/lib.zip

cd ~

git clone https://github.com/aldostools/IRISMAN
cd IRISMAN
make pkg

And yet still fail in the end. Compilation throws errors about missing libs (mainly ps3soundlib being included from $PS3DEV/portlibs/ppu/include and not $PS3DEV/portlibs/ppu/include/soundlib), PIC register clobbered (https://github.com/aldostools/IRISMAN/issues/11), and finally a problem with linking the binary file. I tried manually patching everything, but I found myself stuck at linker situation. As Aldo says in issue linked, he uses SDK from Estwald which is focused on Windows platform. That might be the source of differences in compiler/linker stuff, and I don't want to build another environment just to compile single app.