Start reworking the manager system

Cargo.lock

@@ -748,6 +748,15 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "82b8f8f868b36967f9606790d1903570de9ceaf870a7bf9fbbd3016d636a2cb2"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-epoch"
 version = "0.9.18"
@@ -3933,6 +3942,7 @@ name = "unshell"
 version = "0.0.0"
 dependencies = [
  "chrono",
+ "crossbeam-channel",
  "serde",
  "serde_json",
  "unshell-obfuscate",