diff --git a/src/Applications/UI.elm b/src/Applications/UI.elm
index 15879672..7c574ef9 100644
--- a/src/Applications/UI.elm
+++ b/src/Applications/UI.elm
@@ -21,7 +21,7 @@ import Svg.Elements
 import Tachyons.Classes as T
 import UI.Authentication
 import UI.Backdrop
-import UI.Core exposing (Flags, Model, Msg(..), Switch(..))
+import UI.Core as Core exposing (Flags, Model, Msg(..), Switch(..))
 import UI.Kit
 import UI.Navigation
 import UI.Page as Page
@@ -29,6 +29,7 @@ import UI.Ports as Ports
 import UI.Reply as Reply exposing (Reply(..))
 import UI.Settings
 import UI.Sources
+import UI.UserData
 import Url exposing (Url)
 
 
@@ -93,6 +94,7 @@ update msg model =
 
         LoadHypaethralUserData json ->
             ( { model | isAuthenticated = True, isLoading = False }
+                |> UI.UserData.importHypaethral json
             , Cmd.none
             )
 
@@ -132,6 +134,24 @@ update msg model =
         -----------------------------------------
         -- Brain
         -----------------------------------------
+        NotifyBrain alienEvent ->
+            ( model
+            , Ports.toBrain alienEvent
+            )
+
+        Core.SaveEnclosedUserData ->
+            ( model
+            , Cmd.none
+            )
+
+        Core.SaveHypaethralUserData ->
+            ( model
+            , model
+                |> UI.UserData.exportHypaethral
+                |> Alien.broadcast Alien.SaveHypaethralUserData
+                |> Ports.toBrain
+            )
+
         SignIn method ->
             ( model
             , method
@@ -193,6 +213,12 @@ translateReply reply =
         GoToPage page ->
             ChangeUrlUsingPage page
 
+        Reply.SaveEnclosedUserData ->
+            Core.SaveEnclosedUserData
+
+        Reply.SaveHypaethralUserData ->
+            Core.SaveHypaethralUserData
+
 
 updateChild =
     Replying.updateChild update translateReply
diff --git a/src/Applications/UI/Core.elm b/src/Applications/UI/Core.elm
index 19ec8e5d..2233fcfe 100644
--- a/src/Applications/UI/Core.elm
+++ b/src/Applications/UI/Core.elm
@@ -55,6 +55,9 @@ type Msg
       -----------------------------------------
       -- Brain
       -----------------------------------------
+    | NotifyBrain Alien.Event
+    | SaveEnclosedUserData
+    | SaveHypaethralUserData
     | SignIn Authentication.Method
     | SignOut
       -----------------------------------------
diff --git a/src/Applications/UI/Reply.elm b/src/Applications/UI/Reply.elm
index db4bb16a..47554f14 100644
--- a/src/Applications/UI/Reply.elm
+++ b/src/Applications/UI/Reply.elm
@@ -12,3 +12,5 @@ type Reply
     = AddSourceToCollection Source
     | Chill
     | GoToPage Page
+    | SaveEnclosedUserData
+    | SaveHypaethralUserData
diff --git a/src/Applications/UI/Sources.elm b/src/Applications/UI/Sources.elm
index 14a42a8b..36aaebca 100644
--- a/src/Applications/UI/Sources.elm
+++ b/src/Applications/UI/Sources.elm
@@ -7,6 +7,7 @@ import Material.Icons.Content as Icons
 import Material.Icons.Navigation as Icons
 import Material.Icons.Notification as Icons
 import Replying exposing (R3D3)
+import Return2
 import Return3
 import Sources exposing (..)
 import Sources.Services as Services
@@ -67,7 +68,8 @@ update msg model =
                 |> List.singleton
                 |> List.append model.collection
                 |> (\c -> { model | collection = c })
-                |> Return3.withNothing
+                |> Return2.withNoCmd
+                |> Return3.withReply [ UI.Reply.SaveHypaethralUserData ]
 
         -----------------------------------------
         -- Children
diff --git a/src/Applications/UI/UserData.elm b/src/Applications/UI/UserData.elm
new file mode 100644
index 00000000..dae099ce
--- /dev/null
+++ b/src/Applications/UI/UserData.elm
@@ -0,0 +1,90 @@
+module UI.UserData exposing (HypaethralBundle, exportHypaethral, importHypaethral)
+
+{-| Import user data into or export user data from the UI.Core.Model
+-}
+
+import Authentication exposing (..)
+import Json.Decode as Decode
+import Json.Encode as Encode
+import Sources.Encoding as Sources
+import UI.Core
+import UI.Sources
+
+
+
+-----------------------------------------
+-- 📭
+-----------------------------------------
+
+
+type alias HypaethralBundle =
+    ( HypaethralUserData, Decode.Value )
+
+
+importHypaethral : Decode.Value -> UI.Core.Model -> UI.Core.Model
+importHypaethral value model =
+    let
+        data =
+            Result.withDefault emptyHypaethralUserData (decode value)
+
+        bundle =
+            ( data
+            , Encode.null
+            )
+    in
+    { model | sources = importSources model.sources bundle }
+
+
+
+-- 📭  |  Importing Hypaethral
+
+
+importSources : UI.Sources.Model -> HypaethralBundle -> UI.Sources.Model
+importSources model ( data, _ ) =
+    { model | collection = Maybe.withDefault [] data.sources }
+
+
+
+-- 📭  |  Decoding
+
+
+decode : Decode.Value -> Result Decode.Error HypaethralUserData
+decode =
+    Decode.decodeValue decoder
+
+
+decoder : Decode.Decoder HypaethralUserData
+decoder =
+    Decode.map
+        HypaethralUserData
+        (Decode.maybe <| Decode.field "sources" <| Decode.list Sources.decoder)
+
+
+
+-- 📭  |  Fallbacks
+
+
+emptyHypaethralUserData : HypaethralUserData
+emptyHypaethralUserData =
+    { sources = Nothing }
+
+
+
+-----------------------------------------
+-- 📮
+-----------------------------------------
+
+
+exportHypaethral : UI.Core.Model -> Encode.Value
+exportHypaethral =
+    encode
+
+
+
+-- 📮  |  Encoding
+
+
+encode : UI.Core.Model -> Encode.Value
+encode model =
+    Encode.object
+        [ ( "sources", Encode.list Sources.encode model.sources.collection ) ]
diff --git a/src/Library/Authentication.elm b/src/Library/Authentication.elm
index ae08020c..755c3162 100644
--- a/src/Library/Authentication.elm
+++ b/src/Library/Authentication.elm
@@ -1,4 +1,8 @@
-module Authentication exposing (Method(..), methodFromString, methodToString)
+module Authentication exposing (EnclosedUserData, HypaethralUserData, Method(..), methodFromString, methodToString)
+
+import Sources
+
+
 
 -- 🌳
 
@@ -7,6 +11,15 @@ type Method
     = Local
 
 
+type alias EnclosedUserData =
+    {}
+
+
+type alias HypaethralUserData =
+    { sources : Maybe (List Sources.Source)
+    }
+
+
 
 -- 🔱
 
diff --git a/src/Library/Sources/Encoding.elm b/src/Library/Sources/Encoding.elm
new file mode 100644
index 00000000..a8a8bb12
--- /dev/null
+++ b/src/Library/Sources/Encoding.elm
@@ -0,0 +1,73 @@
+module Sources.Encoding exposing (decode, decoder, encode, encodeData, serviceDecoder)
+
+{-| Encoding.
+-}
+
+import Dict
+import Json.Decode as Decode
+import Json.Encode as Encode
+import Sources exposing (..)
+import Sources.Services as Services
+
+
+
+-- ENCODE
+
+
+encode : Source -> Encode.Value
+encode source =
+    Encode.object
+        [ ( "id", Encode.string source.id )
+        , ( "data", encodeData source.data )
+        , ( "directoryPlaylists", Encode.bool source.directoryPlaylists )
+        , ( "enabled", Encode.bool source.enabled )
+        , ( "service", Encode.string (Services.typeToKey source.service) )
+        ]
+
+
+encodeData : SourceData -> Encode.Value
+encodeData data =
+    data
+        |> Dict.toList
+        |> List.map (Tuple.mapSecond Encode.string)
+        |> Encode.object
+
+
+
+-- DECODE
+
+
+decode : Decode.Value -> Maybe Source
+decode value =
+    Decode.decodeValue decoder value
+        |> Result.toMaybe
+
+
+decoder : Decode.Decoder Source
+decoder =
+    Decode.map5 Source
+        (Decode.field "id" Decode.string)
+        (Decode.field "data" (Decode.dict Decode.string))
+        (Decode.field "directoryPlaylists" Decode.bool
+            |> Decode.maybe
+            |> Decode.map (Maybe.withDefault True)
+        )
+        (Decode.field "enabled" Decode.bool
+            |> Decode.maybe
+            |> Decode.map (Maybe.withDefault True)
+        )
+        (Decode.field "service" serviceDecoder)
+
+
+serviceDecoder : Decode.Decoder Service
+serviceDecoder =
+    Decode.andThen
+        (\key ->
+            case Services.keyToType key of
+                Just service ->
+                    Decode.succeed service
+
+                Nothing ->
+                    Decode.fail "Unrecognizable source service"
+        )
+        Decode.string