It is not.
Bulgaria is a doomed shithole, which has for many decades been ran by a murderous communist mafia, controlling every aspect of the economy and the legal system, while licking many foreign asses with equal dexterity (US / NATO, Russian, European, Ukrainian, Saudi, Israeli, Turkish - everyone whose ass is worth licking, Bulgarian "politicians" do it in order to secure _personal_ gains).
But, yay, open-source. Sure. Whatever.
Bulgaria is not free of problems (see the corruption perceptions index [1]) but it's also far from doomed.
[1] https://en.wikipedia.org/wiki/Corruption_Perceptions_Index#2...
(Even if you're a member of that group—as is often the case with outbursts this vehement, which come not from prejudice but more complex and intense emotions. We get that. But you still can't post like this here.)
Mind you, it's not the country itself that I dislike. I used to love that country, and somewhere deep inside I probably still do, or else I wouldn't care enough to say these things.