diff --git a/pkg/hs/urbit-atom/.gitignore b/pkg/hs/urbit-atom/.gitignore
index 777efe33d3..088be03c68 100644
--- a/pkg/hs/urbit-atom/.gitignore
+++ b/pkg/hs/urbit-atom/.gitignore
@@ -1 +1,2 @@
 urbit-atom.cabal
+dist-newstyle/
diff --git a/pkg/hs/urbit-atom/app/Main.hs b/pkg/hs/urbit-atom/app/Main.hs
new file mode 100644
index 0000000000..f48b1cd0d7
--- /dev/null
+++ b/pkg/hs/urbit-atom/app/Main.hs
@@ -0,0 +1,30 @@
+module Main where
+
+import Prelude
+import Urbit.Atom
+import Urbit.Atom.Internal (bit, byt)
+
+main :: IO ()
+main = do
+  print (bit, byt)
+  f "a"
+  f "x"
+  f "aa"
+  f "ax"
+  f "aaa"
+  f "aax"
+  f "aaaa"
+  f "aaax"
+  f "aaaaa"
+  f "aaaax"
+  f "aaaaaa"
+  f "aaaaax"
+  f "aaaaaaa"
+  f "aaaaaax"
+  f "aaaaaaaa"
+  f "aaaaaaax"
+  f "aaaaaaaaa"
+  f "aaaaaaaax"
+
+ where
+  f x = print (x, utf8Atom x)
diff --git a/pkg/hs/urbit-atom/lib/Urbit/Atom/Internal.hs b/pkg/hs/urbit-atom/lib/Urbit/Atom/Internal.hs
index 12370c0f7b..5f319a6853 100644
--- a/pkg/hs/urbit-atom/lib/Urbit/Atom/Internal.hs
+++ b/pkg/hs/urbit-atom/lib/Urbit/Atom/Internal.hs
@@ -50,6 +50,12 @@ import qualified Foreign.ForeignPtr.Unsafe as Ptr
 #error WORD_SIZE_IN_BITS must be either 32 or 64
 #endif
 
+bit :: Word
+bit = BIT
+
+byt :: Word
+byt = BYT
+
 
 --------------------------------------------------------------------------------
 
diff --git a/pkg/hs/urbit-atom/package.yaml b/pkg/hs/urbit-atom/package.yaml
index db6d6fe6c1..f1b955a07d 100644
--- a/pkg/hs/urbit-atom/package.yaml
+++ b/pkg/hs/urbit-atom/package.yaml
@@ -12,14 +12,27 @@ library:
     - -Werror
     - -O2
 
+executables:
+  urbit-atom:
+    source-dirs: app
+    main: Main.hs
+    dependencies:
+      - urbit-atom
+    ghc-options:
+      - -threaded
+      - -rtsopts
+      - -static
+      - -O2
+      - "-with-rtsopts=-N"
+
 dependencies:
-  - base
-  - bytestring
-  - ghc-prim
-  - integer-gmp
-  - primitive
-  - text
-  - vector
+  - base == 4.12.0.0
+  - bytestring == 0.10.8.2
+  - ghc-prim == 0.5.3
+  - integer-gmp == 1.0.2.0
+  - primitive == 0.6.4.0
+  - text == 1.2.3.1
+  - vector == 0.12.0.3
 
 default-extensions:
   - ApplicativeDo