Oof yeah, some programs really love to touch a lot of stuff making strace kind of annoying to use. I usually end up chaining more grep -v pipes on the end as I find files I’m not interested in seeing e.g.
strace okular | grep openat | grep -v breeze-dark | grep -v icon
Might help to first save it to a file so you don’t have to keep relaunching okular as you add more inverse greps
strace okular | tee some-file
^C
cat some-file | grep -v ...
I would probably try running
strace okular | grep openat
to see all the files it’s trying to read and see if any aren’t managed by your package manager and move those.
But the latest reply by felixernst in the kde discuss also looks helpful.
On my machine at least man openssl shows that -k is for specifying the password you want to derive the key from, so in that case I think you are literally using the string /etc/ssl/private/etcBackup.key as the password. I think the flag you want is -kfile.
You can verify this by running the command in strace and seeing that there is no openat call for the file passed to -k.
Edit: metiulekm@sh.itjust.works beat me to it while I was writing out my answer :)
It is likely not worth your effort as whatever you come up with will likely result in discord deactivating your account for breaking their ToS, or them breaking their API forcing you to constantly play catch-up.
This is why open communication protocols are so important. Email is still as ubiquitous as it is because it’s a protocol, not an API.
I personally think it would be less overall effort to get your friends to switch to an open protocol like matrix, or XMPP than it would playing cat and mouse with proprietary APIs. But you do you, I wish you the best of luck!