Should I write my own QR parser or just use available one.
Should I write my own crypto algo or just use battletested one.
Every line I write - line I need to support.
Every line I write - line I need to support.
Why would the "battletested" be better ? It is "battletested" by the user, anyway.
> Every line I write - line I need to support.
So you prefer to support someone elses code instead of yours ? ( because it is battletested - just like log4j was)
Your tense is incorrect there. "Battletested" means that past users have experienced the carnage of war, so current users can enjoy peace. Your second usage would need to be changed to present tense, like "battletesting", where you subject them to suffering.