diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright Ivan Malison (c) 2018
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Ivan Malison nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
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--- /dev/null
+++ b/README.md
@@ -0,0 +1,1 @@
+# dbus-hslogger
diff --git a/Setup.hs b/Setup.hs
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--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/app/Main.hs b/app/Main.hs
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--- /dev/null
+++ b/app/Main.hs
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+{-# LANGUAGE OverloadedStrings #-}
+module Main where
+
+import Control.Monad
+import DBus
+import DBus.Client
+import Data.Semigroup ((<>))
+import Options.Applicative
+import System.Log.DBus.Client
+
+levelP :: Parser String
+levelP =
+  strOption
+  (  long "level"
+  <> short 'l'
+  <> help "The level to which to set the log"
+  <> metavar "LEVEL"
+  <> value "INFO"
+  )
+
+prefixP :: Parser String
+prefixP =
+  strOption
+  (  long "prefix"
+  <> short 'p'
+  <> help "The log prefix whose level will be set"
+  <> metavar "PREFIX"
+  <> value "System.Taffybar"
+  )
+
+busNameP :: Parser BusName
+busNameP =
+  strOption
+  (  long "bus-name"
+  <> short 'b'
+  <> help "The bus name to which the message should be sent"
+  <> value "org.taffybar.Bar"
+  )
+
+doSetLogLevel :: Client -> Parser (IO (Either MethodError ()))
+doSetLogLevel client = setLogLevel client <$> busNameP <*> prefixP <*> levelP
+
+main = do
+  client <- connectSession
+  res <- join $ execParser $
+         info (doSetLogLevel client <**> helper)
+              (  fullDesc
+              <> progDesc "Set the log level of a running process")
+  print res
diff --git a/dbus-hslogger.cabal b/dbus-hslogger.cabal
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--- /dev/null
+++ b/dbus-hslogger.cabal
@@ -0,0 +1,55 @@
+-- This file has been generated from package.yaml by hpack version 0.28.2.
+--
+-- see: https://github.com/sol/hpack
+--
+-- hash: 7f7304d4396af4a02fe6724a708865b37be2a9fd5567e40adba06ee8dbe63176
+
+name:           dbus-hslogger
+version:        0.1.0.0
+synopsis:       Expose a dbus server to control hslogger
+description:    Please see the README on Github at <https://github.com/IvanMalison/dbus-hslogger#readme>
+category:       System
+homepage:       https://github.com/IvanMalison/dbus-hslogger#readme
+bug-reports:    https://github.com/IvanMalison/dbus-hslogger/issues
+author:         Ivan Malison
+maintainer:     IvanMalison@gmail.com
+copyright:      Ivan Malison
+license:        BSD3
+license-file:   LICENSE
+build-type:     Simple
+cabal-version:  >= 1.10
+extra-source-files:
+    README.md
+
+source-repository head
+  type: git
+  location: https://github.com/IvanMalison/dbus-hslogger
+
+library
+  exposed-modules:
+      System.Log.DBus.Client
+      System.Log.DBus.Server
+  other-modules:
+      Paths_dbus_hslogger
+  hs-source-dirs:
+      src
+  build-depends:
+      base >=4.7 && <5
+    , dbus >=1.0.1 && <2
+    , hslogger
+  default-language: Haskell2010
+
+executable dbus-hslogger-client
+  main-is: Main.hs
+  other-modules:
+      Paths_dbus_hslogger
+  hs-source-dirs:
+      app
+  ghc-options: -threaded -rtsopts -with-rtsopts=-N
+  build-depends:
+      base >=4.7 && <5
+    , dbus >=1.0.0 && <2.0.0
+    , dbus-hslogger
+    , hslogger
+    , optparse-applicative
+  default-language: Haskell2010
diff --git a/src/System/Log/DBus/Client.hs b/src/System/Log/DBus/Client.hs
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--- /dev/null
+++ b/src/System/Log/DBus/Client.hs
@@ -0,0 +1,8 @@
+{-# LANGUAGE TemplateHaskell #-}
+module System.Log.DBus.Client where
+
+import DBus.Generation
+import System.Log.DBus.Server
+
+generateClient defaultGenerationParams { genObjectPath = Just logPath }
+               logIntrospectionInterface
diff --git a/src/System/Log/DBus/Server.hs b/src/System/Log/DBus/Server.hs
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--- /dev/null
+++ b/src/System/Log/DBus/Server.hs
@@ -0,0 +1,37 @@
+{-# LANGUAGE OverloadedStrings #-}
+module System.Log.DBus.Server where
+
+import           DBus
+import           DBus.Client
+import qualified DBus.Introspection as I
+import           System.Log.Logger
+import           Text.Read
+
+maybeToEither :: b -> Maybe a -> Either b a
+maybeToEither = flip maybe Right . Left
+
+setLogLevelFromPriorityString :: String -> String -> IO (Either Reply ())
+setLogLevelFromPriorityString logPrefix levelString =
+  let maybePriority = readMaybe levelString
+      getMaybeResult = sequenceA $ setLogLevel logPrefix <$> maybePriority
+  in maybeToEither (ReplyError errorInvalidParameters []) <$> getMaybeResult
+
+setLogLevel :: String -> Priority -> IO ()
+setLogLevel logPrefix level =
+  getLogger logPrefix >>= saveGlobalLogger . setLevel level
+
+logInterface :: Interface
+logInterface = defaultInterface
+  { interfaceName = "org.taffybar.LogServer"
+  , interfaceMethods = [ autoMethod "SetLogLevel" setLogLevelFromPriorityString ]
+  }
+
+logPath :: ObjectPath
+logPath = "/org/taffybar/LogServer"
+
+startLogServer :: Client -> IO ()
+startLogServer client =
+  export client logPath logInterface
+
+logIntrospectionInterface :: I.Interface
+logIntrospectionInterface = buildIntrospectionInterface logInterface