chore: Nix fixes (#12)

* chore: nix builds now but wont find python

* fix: pass rootSrc to derivation `fuzon`

* fix: correct `python312` dependencies

.gitignore

@@ -1,27 +1,19 @@
+.direnv
+package
+
 # Generated by Cargo
 # will have compiled files and executables
 debug/
 target/
 __pycache__/
 *.so
 
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
-
 # These are backup files generated by rustfmt
 **/*.rs.bk
 
-# MSVC Windows builds of rustc generate these, which store debugging information
-*.pdb
-
 # RustRover
 #  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
-
-# Added by cargo
-
-/target