decompression works

I also added a cli interface

compress.cabal

@@ -30,6 +30,7 @@ executable compress
     StandaloneDeriving,
     StrictData,
     TemplateHaskell,
+    LambdaCase,
     TupleSections,
     TypeApplications,
     TypeFamilies,
@@ -46,12 +47,13 @@ executable compress
     containers,
     text,
     uuid,
+    optparse-generic,
     vector
   default-language:
     GHC2021
   other-modules:
      Data.PQueue
-  ghc-options:
-    -fprof-auto
-    -fprof-late
-    "-with-rtsopts=-p -hc"
+  -- ghc-options:
+  --   -fprof-auto
+  --   -fprof-late
+  --   "-with-rtsopts=-p -hc"