[MacOS] spdlog_ex: Failed opening file DFTFringeLogs/log.txt for writing

[Lucassifoni]

When launched graphically, DFTFringe instantly crashes on Mac. This is because the Finder (MacOS's file explorer and app launcher) runs applications with CWD = "/", which is not user-writable. The app then tries to create DFTFringeLogs/log.txt at / and crashes.

Running it from a terminal from ~Desktop (user-writable) :

 Desktop ./DFTFringe.app/Contents/MacOS/DFTFringe
[2026-08-03 17:46:48.089] [info]


-------------
[2026-08-03 17:46:48.089] [info] spdlog info
[2026-08-03 17:46:48.089] [warning] spdlog warn
[2026-08-03 17:46:48.089] [error] spdlog error
[2026-08-03 17:46:48.089] [critical] spdlog critical
[2026-08-03 17:46:48.090] [critical] This is a demo stacktrace:
 0# main in /Users/lucas/Desktop/DFTFringe.app/Contents/MacOS/DFTFringe

[2026-08-03 17:46:48.198] [info] DFTFringe 9b8ffad25efb8f3c11f82b8b9103bd026f157edf started
[2026-08-03 17:46:48.606] [trace] Log level changed to: Info

Running it from / :

➜  / ./Users/lucas/Desktop/DFTFringe.app/Contents/MacOS/DFTFringe
libc++abi: terminating due to uncaught exception of type spdlog::spdlog_ex: Failed opening file DFTFringeLogs/log.txt for writing: Operation timed out
[1]    37407 abort      ./Users/lucas/Desktop/DFTFringe.app/Contents/MacOS/DFTFringe

I'm preparing a PR for this one.