diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # shake-bindist
 
+## 1.1.0.0
+
+  * Remove brotli support
+
 ## 1.0.2.0
 
   * Fix bug in `tarXz`
diff --git a/shake-bindist.cabal b/shake-bindist.cabal
--- a/shake-bindist.cabal
+++ b/shake-bindist.cabal
@@ -1,6 +1,6 @@
 cabal-version:   2.0
 name:            shake-bindist
-version:         1.0.2.0
+version:         1.1.0.0
 license:         BSD3
 license-file:    LICENSE
 copyright:       Copyright: (c) 2020 Vanessa McHale
@@ -18,11 +18,6 @@
     type:     darcs
     location: https://hub.darcs.net/vmchale/shake-bindist
 
-flag development
-    description: Enable `-Werror`
-    default:     False
-    manual:      True
-
 library
     exposed-modules:  Development.Shake.BinDist
     hs-source-dirs:   src
@@ -31,17 +26,13 @@
     build-depends:
         base >=4.3 && <5,
         shake -any,
-        lzlib >=0.3.2.0,
+        lzlib >=1.0.2.0,
         zstd -any,
         bytestring -any,
         archive-sig >=0.2.0.0,
         bz2 >=0.1.1.0,
         zlib -any,
-        lzma -any,
-        brotli -any
-
-    if flag(development)
-        ghc-options: -Werror
+        lzma -any
 
     if impl(ghc >=8.0)
         ghc-options:
@@ -50,3 +41,9 @@
 
     if impl(ghc >=8.4)
         ghc-options: -Wmissing-export-lists
+
+    if impl(ghc >=8.2)
+        ghc-options: -Wcpp-undef
+
+    if impl(ghc >=8.10)
+        ghc-options: -Wunused-packages
diff --git a/src/Development/Shake/BinDist.hs b/src/Development/Shake/BinDist.hs
--- a/src/Development/Shake/BinDist.hs
+++ b/src/Development/Shake/BinDist.hs
@@ -4,18 +4,15 @@
                                  , tarBz2
                                  , tarGz
                                  , tarXz
-                                 , tarBrotli
                                    -- * Actions
                                  , tarLzipA
                                  , tarZstdA
                                  , tarBz2A
                                  , tarGzA
                                  , tarXzA
-                                 , tarBrotliA
                                  ) where
 
 import           Archive.Compression         (packFromFilesAndCompress)
-import qualified Codec.Compression.Brotli    as Brotli
 import qualified Codec.Compression.BZip      as Bz2
 import qualified Codec.Compression.GZip      as GZip
 import qualified Codec.Compression.Lzma      as Lzma
@@ -23,7 +20,12 @@
 import qualified Codec.Lzip                  as Lzip
 import qualified Data.ByteString.Lazy        as BSL
 import           Development.Shake           hiding (action)
+import           System.IO                   (IOMode (ReadMode), hFileSize,
+                                              withFile)
 
+fileSize :: FilePath -> IO Integer
+fileSize fp = withFile fp ReadMode hFileSize
+
 tarGenericA :: String -- ^ Rule name
             -> (BSL.ByteString -> BSL.ByteString) -- ^ Compression function
             -> [FilePath] -- ^ Files to pack up
@@ -40,8 +42,6 @@
 
 -- | The [lzip](http://www.nongnu.org/lzip/lzip.html) format is suitable for
 -- archiving.
---
--- Note that 'tarLzip' doesn't stream in memory; the others do.
 tarLzip :: [FilePath] -- ^ Files to pack up
         -> FilePattern -- ^ Resultant tarball
         -> Rules ()
@@ -68,16 +68,12 @@
       -> Rules ()
 tarXz = mkRule tarXzA
 
--- | @since 1.0.2.0
-tarBrotli :: [FilePath] -- ^ Files to pack up
-          -> FilePattern -- ^ Resultant tarball
-          -> Rules ()
-tarBrotli = mkRule tarBrotliA
-
 tarLzipA :: [FilePath] -- ^ Files to pack up
          -> FilePath -- ^ File name of resultant tarball
          -> Action ()
-tarLzipA = tarGenericA "tar-lzip" Lzip.compressBest
+tarLzipA fps tar = do
+    guessSz <- liftIO (sum <$> traverse (fmap fromIntegral . fileSize) fps)
+    tarGenericA "tar-lzip" (flip Lzip.compressSzBest guessSz) fps tar
 
 tarZstdA :: [FilePath] -- ^ Files to pack up
          -> FilePath -- ^ File name of resultant tarball
@@ -99,9 +95,3 @@
        -> FilePath -- ^ File name of resultant tarball
        -> Action ()
 tarXzA = tarGenericA "lzma" Lzma.compress
-
--- | @since 1.0.2.0
-tarBrotliA :: [FilePath] -- ^ Files to pack up
-           -> FilePath -- ^ File name of resultant tarball
-           -> Action ()
-tarBrotliA = tarGenericA "brotli" Brotli.compress