diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change log
 
+## 0.2.1.0
+
+* Change `NotFoundException` from `data` to `newtype`
+
 ## 0.2.0.3
 
 * Relax upper bound on `containers`: 0.7 -> 0.8
diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Jason Shipman
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/LICENSE.md b/LICENSE.md
deleted file mode 100644
--- a/LICENSE.md
+++ /dev/null
@@ -1,23 +0,0 @@
-[The MIT License (MIT)][]
-
-Copyright (c) 2020 Jason Shipman
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-[The MIT License (MIT)]: https://opensource.org/licenses/MIT
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# [context][]
+# context
 
 [![Version badge][]][version]
 
@@ -29,6 +29,5 @@
 
 See the Haddocks for more info on the library.
 
-[context]: https://github.com/jship/context/context
 [Version badge]: https://img.shields.io/hackage/v/context?color=brightgreen&label=version&logo=haskell
 [version]: https://hackage.haskell.org/package/context
diff --git a/context.cabal b/context.cabal
--- a/context.cabal
+++ b/context.cabal
@@ -1,33 +1,32 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.35.2.
+-- This file has been generated from package.yaml by hpack version 0.36.0.
 --
 -- see: https://github.com/sol/hpack
 
 name:           context
-version:        0.2.0.3
+version:        0.2.1.0
 synopsis:       Thread-indexed, nested contexts
 description:    Thread-indexed storage around arbitrary context values. The interface supports
                 nesting context values per thread, and at any point, the calling thread may
                 ask for their current context.
 category:       Data
-homepage:       https://github.com/jship/context#readme
-bug-reports:    https://github.com/jship/context/issues
+homepage:       https://sr.ht/~jship/context/
 author:         Jason Shipman
 maintainer:     Jason Shipman
 copyright:      2020 (c) Jason Shipman
 license:        MIT
-license-file:   LICENSE.md
+license-file:   LICENSE
 build-type:     Simple
 extra-source-files:
     CHANGELOG.md
-    LICENSE.md
+    LICENSE
     package.yaml
     README.md
 
 source-repository head
   type: git
-  location: https://github.com/jship/context
+  location: https://git.sr.ht/~jship/context/
 
 library
   exposed-modules:
diff --git a/library/Context/Internal.hs b/library/Context/Internal.hs
--- a/library/Context/Internal.hs
+++ b/library/Context/Internal.hs
@@ -85,7 +85,7 @@
 -- registered context.
 --
 -- @since 0.1.0.0
-data NotFoundException = NotFoundException
+newtype NotFoundException = NotFoundException
   { threadId :: ThreadId
   } deriving stock (Eq, Generic, Show)
     deriving anyclass Exception
@@ -135,7 +135,7 @@
    . (MonadIO m, MonadThrow m)
   => m a
 throwContextNotFound = do
-  threadId <- liftIO $ Concurrent.myThreadId
+  threadId <- liftIO Concurrent.myThreadId
   Catch.throwM $ NotFoundException { threadId }
 
 -- | Provide the calling thread its current context from the specified
@@ -156,7 +156,7 @@
   -> Store ctx
   -> m (Maybe ctx)
 mineMayOnDefault onDefault Store { ref } = do
-  threadId <- liftIO $ Concurrent.myThreadId
+  threadId <- liftIO Concurrent.myThreadId
   State { stacks, def } <- liftIO $ IORef.readIORef ref
   pure $ case Map.lookup threadId stacks of
     Nothing -> onDefault def
@@ -243,7 +243,7 @@
   -- 'Store' will contain context values that are always thread-specific.
   -> m (Store ctx)
 newStore propagationStrategy def = do
-  key <- liftIO $ Unique.newUnique
+  key <- liftIO Unique.newUnique
   ref <- liftIO $ IORef.newIORef State { stacks = Map.empty, def }
   let store = Store { ref, key }
   case propagationStrategy of
@@ -300,7 +300,7 @@
 -- @since 0.1.1.0
 viewMay :: (MonadIO m) => View ctx -> m (Maybe ctx)
 viewMay = \case
-  MkView f store -> fmap (fmap f) $ mineMay store
+  MkView f store -> fmap f <$> mineMay store
 
 -- | Create a 'Context.View.View' from the provided 'Context.Store'.
 --
@@ -367,7 +367,7 @@
 bug prefix =
   error
     $ "Context." <> prefix <> ": Impossible! (if you see this message, please "
-        <> "report it as a bug at https://github.com/jship/context)"
+        <> "report it as a bug)"
 
 -- $disclaimer
 --
diff --git a/package.yaml b/package.yaml
--- a/package.yaml
+++ b/package.yaml
@@ -1,8 +1,9 @@
 name: context
-version: '0.2.0.3'
-github: "jship/context"
+version: '0.2.1.0'
+homepage: https://sr.ht/~jship/context/
+git: https://git.sr.ht/~jship/context/
 license: MIT
-license-file: LICENSE.md
+license-file: LICENSE
 copyright: 2020 (c) Jason Shipman
 author: "Jason Shipman"
 maintainer: "Jason Shipman"
@@ -15,7 +16,7 @@
 
 extra-source-files:
 - CHANGELOG.md
-- LICENSE.md
+- LICENSE
 - package.yaml
 - README.md