Webman Classics Maker is tool for the PS3 that makes PKG shortcuts for ISO files straight to the home menu. It is using web commands through webMAN-mod to mount and launch the ISOs automatically: http://www.psx-place.com/threads/webman-mod-web-commands.1508/
This software is under GPLv2 license: https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html, not to be confused with the GPLv3 license.
Get the latest build from releases: https://github.com/Roet-Ivar/Webman-Classics-Maker/releases/
SCETOOL 0.2.9 (scetool.exe): https://github.com/naehrwert/scetool
OpenSCETool (oscetool): https://github.com/spacemanspiff/oscetool
PSL1GHT pkgcrypt (python3 version) https://github.com/lephilousophe/PSL1GHT/tree/use-python3/tools/ps3py
PARAM_SFO_EDITOR (Aldos PS3 tool collection) https://www.aldostools.org/
webMan-mod https://github.com/aldostools/webMAN-MOD
Credits goes to all of you guys!
Building the executable