diff --git a/argotest/src/Argotest.hs b/argotest/src/Argotest.hs
index 3a650738f9faf3dbda384c8821804f337f807cf6..7a20a6cab2465e128aa45f3921aaa4326b9f457d 100644
--- a/argotest/src/Argotest.hs
+++ b/argotest/src/Argotest.hs
@@ -23,7 +23,7 @@ import Data.Text as Text hiding (empty)
 import Data.Text.IO as Text
 
 data StackArgs = StackArgs
-  { dargs                :: [Text]        --"Daemon arguments. Properly quote this."
+  { dargs                :: [Text]      --"Daemon arguments. Properly quote this."
   , app                  :: Text        --"Target application call, sh+path valid"
   , manifest             :: FilePath    --"Input file, manifest."
   , cmd_out              :: FilePath    --"Output file, application stdout"
@@ -37,7 +37,7 @@ instance Default StackArgs where
   def = StackArgs
     { dargs = []
     , app = "echo \"HelloWorld\""
-    , manifest = "manifests/basic.json"
+    , manifest = "basic.json"
     , cmd_out = "cmd_out.log"
     , cmd_err = "cmd_err.log"
     , daemon_out = "daemon_out.log"
diff --git a/argotk.hs b/argotk.hs
index 9f3a234cb7ee01aa9f02cff7f980e3522e53be6c..a72cc044523ba3166ff8f3f106e5840156277ed9 100755
--- a/argotk.hs
+++ b/argotk.hs
@@ -9,32 +9,37 @@ import Argotest
 import Turtle
 import Data.Default
 import Control.Concurrent.Async
+import System.Environment
 import System.Console.ANSI
 import System.Console.ANSI.Types (Color)
 import Options.Applicative
 import System.Posix.Signals
 import Control.Monad
+import System.Environment.FindBin
 
-opts :: Parser (IO ())
-opts = subparser
-  ( command "clean" (info (pure $ runClean def)
+opts :: StackArgs -> Parser (IO ())
+opts sa = subparser
+  ( command "clean" (info (pure $ runClean sa)
      (progDesc "Clean sockets, logfiles."))
- <> command "daemon"  (info (pure $ runDaemon def)
+ <> command "daemon"  (info (pure $ runDaemon sa)
      (progDesc "Set up and launch the daemon in synchronous mode, \
                \with properly cleaned sockets, logfiles."))
- <> command "application"  (info (runApp <$> argument str idm)
+ <> command "application"  (info (runApp sa <$> argument str idm)
      (progDesc "Setup stack and run an arbitrary command in a container."))
- <> command "helloworld"  (info (pure $ runHelloWorld def )
+ <> command "helloworld"  (info (pure $ runHelloWorld sa )
      (progDesc "Setup stack and check that hello world app sends \
                \message back to cmd."))
  <> help "Type of action to run"
  )
 
 main :: IO ()
-main = join $ execParser (info (opts <**>helper) idm)
+main = do
+  manifests <- getEnv "MANIFESTS"
+  let sa = def { manifest = decodeString manifests </> manifest def}
+  join $ execParser (info (opts sa <**>helper) idm)
 
-runApp :: Text -> IO ()
-runApp app = runSimpleStack $ def {app = app}
+runApp :: StackArgs -> Text -> IO ()
+runApp sa app = runSimpleStack $ sa {app = app}
 
 runHelloWorld :: StackArgs -> IO ()
 runHelloWorld a@StackArgs{..} = do
diff --git a/default.nix b/default.nix
index 97c95300d7af4d7731abb7d62dab65f90ff5e056..4f1ba3ab6d76a79c9009265ead5ad494a413e189 100644
--- a/default.nix
+++ b/default.nix
@@ -43,6 +43,7 @@ in rec
         p.unix
         p.system-filepath
         p.async
+        p.FindBin
         (pkgs.haskell.lib.doJailbreak p.panpipe)
         ]))
       containers
@@ -52,6 +53,7 @@ in rec
       amg
       nrm
     ];
+    MANIFESTS = ./manifests;
   };
 
   test = pkgs.stdenv.mkDerivation rec {
@@ -62,11 +64,12 @@ in rec
     name = "env";
     env = pkgs.buildEnv { name = name; paths = buildInputs; };
     buildInputs = [
-      (hpkgs.ghcWithPackages (p: [p.argotest]))
+      (hpkgs.ghcWithPackages (p: [p.argotest p.FindBin]))
       containers
       amg
       nrm
     ];
+    MANIFESTS = ./manifests;
   };
 }