There is definitely a balance. When reviewing applications if I see that you used a bunch of technologies that I'm not familiar with, in my mind that counts for

There is definitely a balance. When reviewing applications if I see that you used a bunch of technologies that I'm not familiar with, in my mind that counts for nothing. On the other hand, being too sparse also gives me few signals on whether you're a good candidate. IMO as a rule of thumb, adding details related to the job description is good. Otherwise, keep it broad enough that anyone in your field will know what you're talking about.