Its simple.
Run TrophyUnlocker.exe
Add the Param.sfo of the current game you want to run.
Add the Nptitle and NpBlind files add the trophy.trp file
All can be dumped with the app dump payload.

Click build.

Now install the created pkg on the ps4
(If the game is installed it will overwrite it so be careful)
Run it.
Click the arrows up and down to select the trophy you want unlocked
[ ] to view the trophy list.
X to unlock.
And Triangle for a screenshot

Have fun
xDPx

P.s. this is a beta and a better looking ui with more stability will be coming soon as well as the source code to the github

-edit here is a hotfix thanks @GraFfiX_221211 for testing