Has anyone managed to run Spectre on Mac OS Big Sur

Hi everybody,

i was wondering if anybody was able to get Spectre to run on Mac OS Big Sir Vers. 11.5.2.
I am running into several error messages when trying to open spectre. 

First it said, this software will harm your computer. However I could solve this by checking a box in information panel of the spectre file called -> "Schutz gegen Schadsoftware überschreiben"
Then I ran into another error message, saying I have not the necessary rights to open this file. Don't understand as my user has admin rights on my Mac. 

Has anybody a solution to this problem? 
Actually the Version of Spectre should run on Big Sur, at least that's what the readme.file of spectre says. 

Regards
Ferdy