diff --git a/ChangeLog.md b/ChangeLog.md
new file mode 100644
--- /dev/null
+++ b/ChangeLog.md
@@ -0,0 +1,5 @@
+# Revision history for warp-quic
+
+## 0.0.0.0
+
+* First version. Released on an unsuspecting world.
diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,29 @@
+Copyright (c) 2020, IIJ Innovation Institute Inc.
+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 the copyright holders nor the names of its
+    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/Network/Wai/Handler/WarpQUIC.hs b/Network/Wai/Handler/WarpQUIC.hs
new file mode 100644
--- /dev/null
+++ b/Network/Wai/Handler/WarpQUIC.hs
@@ -0,0 +1,41 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+-- | WAI handler for HTTP/3 based on QUIC.
+module Network.Wai.Handler.WarpQUIC where
+
+import qualified Data.ByteString as BS
+import qualified Network.HQ.Server as HQ
+import qualified Network.HTTP3.Server as H3
+import Network.QUIC
+import Network.QUIC.Server as Q
+import Network.TLS (cipherID)
+import Network.Wai
+import Network.Wai.Handler.Warp hiding (run)
+import Network.Wai.Handler.Warp.Internal
+
+-- | QUIC server settings.
+type QUICSettings = ServerConfig
+
+-- | Running warp with HTTP/3 on QUIC.
+runQUIC :: QUICSettings -> Settings -> Application -> IO ()
+runQUIC quicsettings settings app = do
+    withII settings $ \ii ->
+        Q.run quicsettings $ \conn -> do
+           info <- getConnectionInfo conn
+           mccc <- clientCertificateChain conn
+           let addr = remoteSockAddr info
+               malpn = alpn info
+               transport = QUIC {
+                   quicNegotiatedProtocol = malpn
+                 , quicChiperID = cipherID $ cipher info
+                 , quicClientCertificate = mccc
+                 }
+               pread = pReadMaker ii
+               timmgr = timeoutManager ii
+               conf = H3.Config H3.defaultHooks pread timmgr
+           case malpn of
+             Nothing -> return ()
+             Just appProto -> do
+                 let runX | "h3" `BS.isPrefixOf` appProto = H3.run
+                          | otherwise                     = HQ.run
+                 runX conn conf $ http2server settings ii transport addr app
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/warp-quic.cabal b/warp-quic.cabal
new file mode 100644
--- /dev/null
+++ b/warp-quic.cabal
@@ -0,0 +1,27 @@
+name:                warp-quic
+version:             0.0.0
+author:              Kazu Yamamoto <kazu@iij.ad.jp>
+maintainer:          Kazu Yamamoto <kazu@iij.ad.jp>
+license:             BSD3
+license-file:        LICENSE
+synopsis:            Warp based on QUIC
+description:         WAI handler for HTTP/3 based on QUIC
+homepage:            https://github.com/kazu-yamamoto/warp-quic
+category:            Network
+cabal-version:       >=1.10
+build-type:          Simple
+extra-source-files:  ChangeLog.md
+
+library
+  default-language:    Haskell2010
+  ghc-options:         -Wall
+  exposed-modules:     Network.Wai.Handler.WarpQUIC
+  build-depends:       base >= 4.13 && < 5
+                     , bytestring
+                     , http3
+                     , quic
+                     , tls
+                     , wai
+                     , warp >= 3.3.15
+  if impl(ghc >= 8)
+      default-extensions:  Strict StrictData
