diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
new file mode 100644
index 0000000..5809acd
--- /dev/null
+++ b/.github/workflows/build.yaml
@@ -0,0 +1,62 @@
+name: Build
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+  release:
+    types: [prereleased]
+
+jobs:
+  check_versions:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Check library version
+        if: github.event_name == 'release'
+        run: |
+          if [ "$(yq eval ".version" package.yaml)" != "${{ github.event.release.tag_name }}" ]; then
+            echo "::error file=action.yaml::Library version does not match release version."
+            exit 1
+          fi
+  Linux:
+    needs: check_versions
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Cache
+        uses: actions/cache@v1
+        with:
+          path: |
+            ~/.stack
+            .stack-work
+          key: ${{ runner.os }}-stack-${{ hashFiles('stack.yaml') }}-${{ hashFiles('package.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-stack-${{ hashFiles('stack.yaml') }}
+            ${{ runner.os }}-stack
+
+      - name: Upgrade stack
+        shell: bash
+        run: stack upgrade --git
+
+      - name: Build
+        shell: bash
+        run: |
+          stack build
+
+      - name: Check Formatting
+        shell: bash
+        run: |
+          stack install ormolu
+          ormolu -o -XTypeApplications -o -XCPP -m check $(find src -type f -name "*.hs")
+
+      - name: Publish candidate
+        shell: bash
+        if: github.event_name == 'release'
+        env:
+          HACKAGE_KEY: ${{ secrets.HACKAGE_TOKEN }}
+        run: |
+          stack upload --pvp-bounds both --test-tarball --candidate .
diff --git a/Changelog.md b/Changelog.md
new file mode 100644
index 0000000..b36483c
--- /dev/null
+++ b/Changelog.md
@@ -0,0 +1,3 @@
+# 0.1.0.0
+
+Initial release
diff --git a/package.yaml b/package.yaml
index 82b57ca..36e5f6e 100644
--- a/package.yaml
+++ b/package.yaml
@@ -1,18 +1,33 @@
 name: deriving-openapi3
-version: 0.1.0
+version: 0.1.0.0
 synopsis: DerivingVia for OpenAPI 3
-# description:
+description: See <https://github.com/ilyakooo0/deriving-openapi3 GitHub> for more details.
 maintainer: Ilya Kostyuchenko <ilyakooo0@gmail.com>
+category: JSON, Generics, OpenAPI
+license: MIT
+license-file: LICENSE
+extra-source-files: Changelog.md
 github: ilyakooo0/deriving-openapi3
-ghc-options: -Wall
+ghc-options: -Weverything
+  -Wno-star-is-type
+  -Wno-unsafe
+  -Wno-prepositive-qualified-module
+  -Wno-safe
+  -Wno-missing-safe-haskell-mode
+  -Wno-missing-import-lists
+  -Wno-implicit-prelude
 dependencies:
   - base
   - openapi3
   - deriving-aeson
   - aeson
-  - servant
   - lens
   - text
+when:
+  - condition: flag(servant-description)
+    dependencies:
+      - servant
+    cpp-options: -DSERVANT_DESCRIPTION
 library:
   source-dirs: src
 default-extensions:
@@ -27,3 +42,8 @@ default-extensions:
   - TypeFamilies
   - PolyKinds
   - OverloadedStrings
+flags:
+  servant-description:
+    description: Create instances for the 'Description' type from 'servant'
+    default: true
+    manual: false
diff --git a/src/Deriving/OpenApi.hs b/src/Deriving/OpenApi.hs
index 8e61f36..61c165f 100644
--- a/src/Deriving/OpenApi.hs
+++ b/src/Deriving/OpenApi.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-# OPTIONS_GHC -Wno-orphans #-}
 
 module Deriving.OpenApi
@@ -15,13 +16,28 @@ import Data.Kind
 import Data.OpenApi
 import Data.OpenApi.Internal.Schema
 import Data.Proxy
-import Data.Text (Text)
-import qualified Data.Text as T
 import Data.Typeable
 import Deriving.Aeson
 import GHC.Generics
 import GHC.TypeLits
+
+#ifdef SERVANT_DESCRIPTION
+
 import Servant.API
+import Data.Text (Text)
+import qualified Data.Text as T
+
+instance (AesonOptions xs) => AesonOptions (Description f ': xs) where
+  aesonOptions = aesonOptions @xs
+
+instance (OpenApiOptions xs, KnownSymbol t) => OpenApiOptions (Description t ': xs) where
+  openApiOptions = openApiOptions @xs
+  openApiSchemaModifier = schema . description <>~ Just (toTextLine @t)
+
+toTextLine :: forall s. KnownSymbol s => Text
+toTextLine = "\n\n" <> T.pack (symbolVal (Proxy @s))
+
+#endif
 
 type CustomOpenApi = CustomJSON
 
@@ -37,16 +53,6 @@ instance (StringModifier f, OpenApiOptions xs) => OpenApiOptions (DatatypeNameMo
 instance (AesonOptions xs) => AesonOptions (DatatypeNameModifier f ': xs) where
   aesonOptions = aesonOptions @xs
 
-instance (AesonOptions xs) => AesonOptions (Description f ': xs) where
-  aesonOptions = aesonOptions @xs
-
-instance (OpenApiOptions xs, KnownSymbol t) => OpenApiOptions (Description t ': xs) where
-  openApiOptions = openApiOptions @xs
-  openApiSchemaModifier = schema . description <>~ Just (toTextLine @t)
-
-toTextLine :: forall s. KnownSymbol s => Text
-toTextLine = "\n\n" <> T.pack (symbolVal (Proxy @s))
-
 type family (++) (x :: [k]) (y :: [k]) :: [k] where
   (++) '[] ys = ys
   (++) (x ': xs) ys = xs ++ (x ': ys)