switch to rocket::launch

refactor cache setup function
remove lazy_static dep, replace with OnceLock

Cargo.toml

@@ -36,7 +36,6 @@ tar = "~0.4"
 
 # and some stuff I don't know why it isn't in std
 rand = { version = "~0.8", features = ["std", "alloc", "getrandom", "std_rng", "log"] }
-lazy_static = "~1.4"
 regex = "~1.11"
 chrono = "~0.4"
 memmap2 = "~0.9"