The problem with a NSL is that the gag rule is pretty watertight. For example, "oops, I accidentally wrote my password on a bathroom wall" is gonna land you in a world of hurt.
You need to find a way to bring some of your other rights into balance (and conflict with) those of the state, to bring professionals who have a duty to protect your confidence to your defense.
The power of the state is asymmetric warfare against an individual, which is what they count on. You need leverage from other competing lawful protections working on your side.
We have pretty much identical laws here (where here is UK) - you can be forced to backdoor things, you can't tell the customer and you can't tell anyone else in the company (not sure if you are allowed to tell your manager).
There was a whole thing about it a while ago, gov said "we are listening to your feedback" and then did it anyway.
Of course our system is actually worse in some ways - forgotten a password, they don't believe you (parks and rec style) "Believe it or not, straight to jail" (iirc it's a max of two years).
You need to find a way to bring some of your other rights into balance (and conflict with) those of the state, to bring professionals who have a duty to protect your confidence to your defense.
The power of the state is asymmetric warfare against an individual, which is what they count on. You need leverage from other competing lawful protections working on your side.