diff --git a/.github/workflows/binaries.yml b/.github/workflows/binaries.yml
index 91d3424..a084c01 100644
--- a/.github/workflows/binaries.yml
+++ b/.github/workflows/binaries.yml
@@ -63,7 +63,7 @@ jobs:
       run: |
           export ARTIFACTS=${{ runner.os }}/fints2ledger
           mkdir -p ${ARTIFACTS}
-          cabal install --installdir="${ARTIFACTS}" --install-method=copy --enable-executable-static -fbundle_data_dir 
+          cabal install --installdir="${ARTIFACTS}" --install-method=copy --enable-executable-static
           strip "${ARTIFACTS}/fints2ledger"
           cp -r data "${ARTIFACTS}"
 
diff --git a/app/default/Main.hs b/app/Main.hs
similarity index 100%
rename from app/default/Main.hs
rename to app/Main.hs
diff --git a/app/bundled/Main.hs b/app/bundled/Main.hs
deleted file mode 100644
index 87c32c4..0000000
--- a/app/bundled/Main.hs
+++ /dev/null
@@ -1,10 +0,0 @@
-module Main (main) where
-
-import Lib
-import System.Environment (getExecutablePath, setEnv)
-import System.FilePath (takeDirectory)
-
-main :: IO ()
-main = do
-  setEnv "fints2ledger_datadir" =<< (takeDirectory <$> getExecutablePath)
-  runFints2Ledger
diff --git a/fints2ledger.cabal b/fints2ledger.cabal
index 400266e..988b99e 100644
--- a/fints2ledger.cabal
+++ b/fints2ledger.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.35.1.
+-- This file has been generated from package.yaml by hpack version 0.35.2.
 --
 -- see: https://github.com/sol/hpack
 
@@ -30,11 +30,6 @@ source-repository head
   type: git
   location: https://github.com/MoritzR/fints2ledger
 
-flag bundle_data_dir
-  description: Set the data dir to be relative to the executable for easier bundling
-  manual: True
-  default: False
-
 library
   exposed-modules:
       App
@@ -75,6 +70,7 @@ library
     , cryptohash-md5 ==0.11.101.*
     , dates >=0.2.3.2 && <0.2.4
     , directory ==1.3.6.*
+    , file-embed ==0.0.15.*
     , filepath ==1.4.2.*
     , generic-lens ==2.2.2.*
     , haskeline ==0.8.2.*
@@ -82,6 +78,7 @@ library
     , lens ==5.1.1
     , optparse-applicative ==0.17.1.*
     , regex-tdfa ==1.3.2.*
+    , temporary
     , text ==1.2.5.*
     , text-format-heavy ==0.1.5.3
     , time ==1.11.1.*
@@ -96,6 +93,8 @@ executable fints2ledger
   main-is: Main.hs
   other-modules:
       Paths_fints2ledger
+  hs-source-dirs:
+      app
   default-extensions:
       DuplicateRecordFields
       OverloadedRecordDot
@@ -114,6 +113,7 @@ executable fints2ledger
     , cryptohash-md5 ==0.11.101.*
     , dates >=0.2.3.2 && <0.2.4
     , directory ==1.3.6.*
+    , file-embed ==0.0.15.*
     , filepath ==1.4.2.*
     , fints2ledger
     , generic-lens ==2.2.2.*
@@ -122,6 +122,7 @@ executable fints2ledger
     , lens ==5.1.1
     , optparse-applicative ==0.17.1.*
     , regex-tdfa ==1.3.2.*
+    , temporary
     , text ==1.2.5.*
     , text-format-heavy ==0.1.5.3
     , time ==1.11.1.*
@@ -131,16 +132,6 @@ executable fints2ledger
     , vty ==5.37
     , yaml ==0.11.11.*
   default-language: GHC2021
-  if (flag(bundle_data_dir))
-    other-modules:
-        Main
-    hs-source-dirs:
-        app/bundled
-  else
-    other-modules:
-        Main
-    hs-source-dirs:
-        app/default
 
 test-suite fints2ledger-test
   type: exitcode-stdio-1.0
@@ -174,6 +165,7 @@ test-suite fints2ledger-test
     , cryptohash-md5 ==0.11.101.*
     , dates >=0.2.3.2 && <0.2.4
     , directory ==1.3.6.*
+    , file-embed ==0.0.15.*
     , filepath ==1.4.2.*
     , fints2ledger
     , generic-lens ==2.2.2.*
@@ -184,6 +176,7 @@ test-suite fints2ledger-test
     , regex-tdfa ==1.3.2.*
     , sydtest ==0.13.0.*
     , sydtest-discover ==0.0.0.*
+    , temporary
     , text ==1.2.5.*
     , text-format-heavy ==0.1.5.3
     , time ==1.11.1.*
diff --git a/package.yaml b/package.yaml
index 25d0268..08b8af2 100644
--- a/package.yaml
+++ b/package.yaml
@@ -49,6 +49,8 @@ dependencies:
 - generic-lens >= 2.2.2 && < 2.2.3 # automatically generate lenses
 - cassava >= 0.5.3 && < 0.5.4 # csv encoding/decoding
 - vector >= 0.12.3 && < 0.12.4 # list-like type, used by cassava
+- file-embed >= 0.0.15 && < 0.0.16 # for embedding files into the executable
+- temporary # for creating temporary files
 
 language: GHC2021
 
@@ -77,12 +79,7 @@ library:
 executables:
   fints2ledger:
     main: Main.hs
-    when:
-    - condition: (flag(bundle_data_dir))
-      then:
-        source-dirs: app/bundled
-      else:
-        source-dirs: app/default
+    source-dirs: app
     ghc-options:
     - -threaded
     - -rtsopts
@@ -103,9 +100,3 @@ tests:
     - sydtest >= 0.13.0 && < 0.13.1 # testing library
     - sydtest-discover >= 0.0.0 && < 0.0.1 # automatic test discovery
     - QuickCheck == 2.14.3 # property based testing library
-
-flags:
-  bundle_data_dir:
-    description: Set the data dir to be relative to the executable for easier bundling
-    default: false
-    manual: true
\ No newline at end of file
diff --git a/src/Config/Files.hs b/src/Config/Files.hs
index 5bf1816..b39f4a4 100644
--- a/src/Config/Files.hs
+++ b/src/Config/Files.hs
@@ -1,9 +1,14 @@
 {-# LANGUAGE DerivingStrategies #-}
+{-# LANGUAGE TemplateHaskell #-}
 
-module Config.Files (getDefaultConfigDirectory, getConfigFilePath, getTemplatePath, ConfigDirectory (..)) where
+module Config.Files (getDefaultConfigDirectory, getConfigFilePath, templateFile, exampleFile, pyfintsFile, ConfigDirectory (..)) where
 
+import Data.ByteString (ByteString)
+import Data.FileEmbed (embedDir)
+import Data.Map (Map, fromList, (!))
 import Data.String (IsString)
-import Paths_fints2ledger (getDataFileName)
+import Data.Text (Text)
+import Data.Text.Encoding qualified as T
 import System.Directory (getHomeDirectory)
 import System.FilePath ((</>))
 
@@ -15,8 +20,17 @@ getDefaultConfigDirectory = do
 getConfigFilePath :: ConfigDirectory -> FilePath
 getConfigFilePath configDirectory = configDirectory.get </> "config.yml"
 
-getTemplatePath :: IO FilePath
-getTemplatePath = getDataFileName "data/template.txt"
+templateFile :: Text
+templateFile = T.decodeUtf8 $ dataFiles ! "template.txt"
+
+exampleFile :: Text
+exampleFile = T.decodeUtf8 $ dataFiles ! "example.json"
+
+pyfintsFile :: Text
+pyfintsFile = T.decodeUtf8 $ dataFiles ! "pyfints.py"
+
+dataFiles :: Map FilePath ByteString
+dataFiles = fromList ($(embedDir "data"))
 
 newtype ConfigDirectory = ConfigDirectory {get :: FilePath}
   deriving newtype (Show, IsString)
diff --git a/src/Prompt.hs b/src/Prompt.hs
index e192fd5..aae4143 100644
--- a/src/Prompt.hs
+++ b/src/Prompt.hs
@@ -2,7 +2,6 @@ module Prompt (transactionsToLedger) where
 
 import App (App, Env (..), PromptResult (..), printText)
 import Config.AppConfig (AppConfig (..))
-import Config.Files (getTemplatePath)
 import Config.YamlConfig (Fill, Filling (..), LedgerConfig (..))
 import Control.Arrow ((>>>))
 import Control.Monad (forM_, when)
@@ -26,6 +25,7 @@ import Text.Regex.TDFA (AllTextMatches (getAllTextMatches), (=~))
 import Transactions (Amount (..), Transaction (..))
 import Utils (calculateMd5Value, formatDouble, toLazyTemplateMap)
 import Prelude hiding (appendFile, putStrLn, readFile)
+import Config.Files (templateFile)
 
 {- | A Map of key/value pairs that will be used to fill the template file
 We fill these values step by step by:
@@ -40,14 +40,13 @@ transactionsToLedger transactions = do
   config <- asks (.config)
   readFile <- asks (.readFile)
   existingMd5Sums <- getExistingMd5Sums <$> liftIO (readFile config.journalFile)
-  template <- liftIO $ readFile =<< getTemplatePath
 
   printText "        Controls:"
   printText "            - Ctrl + D or enter 's' to skip an entry"
   printText "            - Ctrl + C to abort"
 
   forM_ transactions do
-    transactionToLedger existingMd5Sums template
+    transactionToLedger existingMd5Sums templateFile
 
 transactionToLedger :: Set Text -> Text -> Transaction -> App ()
 transactionToLedger existingMd5Sums template transaction = do
diff --git a/src/Transactions.hs b/src/Transactions.hs
index aee9d6a..c17dfc2 100644
--- a/src/Transactions.hs
+++ b/src/Transactions.hs
@@ -12,6 +12,7 @@ module Transactions (
 where
 
 import Config.AppConfig (AppConfig (..))
+import Config.Files (exampleFile, pyfintsFile)
 import Config.YamlConfig (FintsConfig (..), Password (..))
 import Control.Exception (Exception, throwIO)
 import Data.Aeson (FromJSON, ToJSON)
@@ -28,15 +29,15 @@ import Data.Time (Day, defaultTimeLocale, formatTime)
 import Data.Vector (toList)
 import GHC.Generics (Generic)
 import Hledger (getCurrentDay)
-import Paths_fints2ledger (getDataFileName)
 import System.Console.Haskeline qualified as Haskeline
+import System.IO.Temp (withSystemTempFile)
 import System.Process.Typed (ExitCode (ExitFailure, ExitSuccess), readProcess, shell)
 import Utils (encodeAsString, orElseThrow, (??))
+import System.IO (hFlush)
 
 getExampleTransactions :: IO [Transaction]
 getExampleTransactions = do
-  contents <- TIO.readFile =<< getDataFileName "data/example.json"
-  decodeTransactions contents `orElseThrow` TransactionDecodeError
+  decodeTransactions exampleFile `orElseThrow` TransactionDecodeError
  where
   decodeTransactions = Aeson.eitherDecode . TL.encodeUtf8 . TL.fromStrict
 
@@ -53,7 +54,6 @@ convertTransactionsToCsv path = BS.writeFile path . Csv.encodeDefaultOrderedByNa
 getTransactionsFromFinTS :: AppConfig -> IO [Transaction]
 getTransactionsFromFinTS config = do
   currentDay <- getCurrentDay
-  pyfintsFilePath <- getDataFileName "data/pyfints.py"
   password <- maybe getPassword return config.fintsConfig.password
 
   let pyfintsArgs =
@@ -66,20 +66,25 @@ getTransactionsFromFinTS config = do
           , start = formatDayForPython config.startDate
           , end = formatDayForPython currentDay
           }
-  let shellCommand =
-        shell $
-          "FINTS2LEDGER_ARGS='"
+
+  withSystemTempFile "fints2ledger.py" \path handle -> do
+    TIO.hPutStr handle pyfintsFile
+    hFlush handle
+
+    let shellCommand =
+          shell
+            $ "FINTS2LEDGER_ARGS='"
             ++ encodeAsString pyfintsArgs
             ++ "' "
             ++ config.pythonExecutable
             ++ " "
-            ++ pyfintsFilePath
-  (exitCode, stdOut, stdErr) <- readProcess shellCommand
-  case exitCode of
-    ExitSuccess -> Aeson.eitherDecode stdOut `orElseThrow` TransactionDecodeError
-    ExitFailure _ -> do
-      TIO.putStrLn $ TL.toStrict $ TL.decodeUtf8 stdErr
-      throwIO $ PyFintsError "Failed to get FinTS transactions, check the message above."
+            ++ path
+    (exitCode, stdOut, stdErr) <- readProcess shellCommand
+    case exitCode of
+      ExitSuccess -> Aeson.eitherDecode stdOut `orElseThrow` TransactionDecodeError
+      ExitFailure _ -> do
+        TIO.putStrLn $ TL.toStrict $ TL.decodeUtf8 stdErr
+        throwIO $ PyFintsError "Failed to get FinTS transactions, check the message above."
 
 getPassword :: IO Password
 getPassword = do
diff --git a/test/TransactionSpec.hs b/test/TransactionSpec.hs
index d9dba8f..28e411f 100644
--- a/test/TransactionSpec.hs
+++ b/test/TransactionSpec.hs
@@ -1,9 +1,9 @@
 module TransactionSpec (spec) where
 
+import Config.Files (exampleFile)
 import Data.Aeson qualified as Aeson
+import Data.Text.Lazy (fromStrict)
 import Data.Text.Lazy.Encoding (encodeUtf8)
-import Data.Text.Lazy.IO as TLIO
-import Paths_fints2ledger (getDataFileName)
 import Test.Syd (Spec, describe, it, shouldBe)
 import Transactions (Amount (Amount), Transaction (..))
 
@@ -11,8 +11,7 @@ spec :: Spec
 spec = do
   describe "Transactions" do
     it "parses the sample transactions" do
-      sampleTransaction <- TLIO.readFile =<< getDataFileName "data/example.json"
-      let parsedTransactions = Aeson.eitherDecode (encodeUtf8 sampleTransaction)
+      let parsedTransactions = Aeson.eitherDecode (encodeUtf8 $ fromStrict exampleFile)
 
       head <$> parsedTransactions
         `shouldBe` Right