diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,9 @@
+2.1 (2018-10-22)
+
+  * Switched to a a lighter-weight here-document library
+  * Updated API documentation
+
+
 2.0 (2018-10-22)
 
   * Redesigned as a binary utility to be installed on a system, not a script
diff --git a/hsinstall.cabal b/hsinstall.cabal
--- a/hsinstall.cabal
+++ b/hsinstall.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: f60a6fb3e6b02783f5b070298486b94b6e837860bb3ed714828023ecbe1fdaa8
+-- hash: a681e9c6bebfdb69f5381c614da7b4914226a5b02e54964d30b3bd8ed648caa7
 
 name:           hsinstall
-version:        2.0
+version:        2.1
 synopsis:       Install Haskell software
 description:    This is a tool for deploying software projects into directory structures suitable for installation on a system. It builds upon the `stack install` command and adds more features. It's also a tool for easier AppImage creation.
 category:       Utility
@@ -60,7 +60,7 @@
     , base >=4.8 && <5.0
     , directory
     , filepath
-    , here
+    , heredoc
     , hsinstall
     , process
   default-language: Haskell2010
diff --git a/package.yaml b/package.yaml
--- a/package.yaml
+++ b/package.yaml
@@ -1,5 +1,5 @@
 name: hsinstall
-version: '2.0'
+version: '2.1'
 synopsis: Install Haskell software
 description: This is a tool for deploying software projects into directory structures suitable for installation on a system. It builds upon the `stack install` command and adds more features. It's also a tool for easier AppImage creation.
 license: ISC
@@ -45,6 +45,6 @@
     - Cabal
     - directory
     - filepath
-    - here
+    - heredoc
     - hsinstall
     - process
diff --git a/src/app/HSInstall/Opts.hs b/src/app/HSInstall/Opts.hs
--- a/src/app/HSInstall/Opts.hs
+++ b/src/app/HSInstall/Opts.hs
@@ -10,11 +10,11 @@
   where
 
 import Data.Maybe ( listToMaybe )
-import Data.String.Here.Interpolated ( iTrim )
 import Data.Version ( showVersion )
 import Paths_hsinstall ( version )
 import System.Console.GetOpt
 import System.Environment ( getProgName )
+import Text.Heredoc ( here )
 import Text.Printf ( printf )
 
 
@@ -84,7 +84,8 @@
 usageText :: IO String
 usageText = do
   progName <- getProgName
-  return $ (usageInfo (header progName) options) ++ "\n" ++ body
+  return $ (usageInfo (header progName) options) ++ "\n" ++
+    (printf body $ showVersion version)
 
   where
     header progName = init $ unlines
@@ -93,8 +94,7 @@
       , ""
       , "options:"
       ]
-    body = [iTrim|
-OVERVIEW
+    body = [here|OVERVIEW
 
 hsinstall is a tool for deploying software projects into directory structures suitable for installation on a system. It builds upon the `stack install` command and adds more features. Those are:
 
@@ -141,8 +141,7 @@
 If present, hsinstall will deploy a `resources` directory to `<PREFIX>/share/PROJECT-VERSION/resources`. In order to locate these files at runtime, the hsinstall project includes a library to build filesystem-portable relative paths. See this source code for help on integrating this into your app: https://github.com/dino-/hsinstall/blob/master/src/lib/HSInstall/Resources.hs
 
 
-Version ${showVersion version}  Dino Morelli <dino@ui3.info>
-|]
+Version %s  Dino Morelli <dino@ui3.info>|]
 
 
 formattedVersion :: IO String
diff --git a/src/lib/HSInstall/Resources.hs b/src/lib/HSInstall/Resources.hs
--- a/src/lib/HSInstall/Resources.hs
+++ b/src/lib/HSInstall/Resources.hs
@@ -1,8 +1,7 @@
 {- |
-   Support library for users of the installation script in
-   hsinstall. When your project has data files in a @resources@
-   directory, this library can be used to locate those files
-   at runtime.
+  Resource location support library for software deployed with the hsinstall
+  utility. Or, really, anything that roughly follows an FHS-like deployment
+  structure.
 -}
 module HSInstall.Resources
    ( getRsrcDir )
@@ -14,19 +13,22 @@
 
 
 {- |
-   Get the path to the resources, relative to where the binary was
-   installed and executed from. The argument passed here is expected
-   to be the @getDataDir@ generated by Cabal at compile time in the
-   @Paths_YOUR_PROJECT@ module.
+  Get a path to the application resources directory relative to the binary
+  location. The argument passed here is expected to be the output of
+  @getDataDir@ generated by Cabal at compile time in the @Paths_YOUR_PROJECT@
+  module.
 
-   Usage:
+  Usage:
 
-   @
-      import HSInstall ( getRsrcDir )
-      import Paths_YOUR_PROJECT ( getDataDir )
+  @
+    import HSInstall.Resources ( getRsrcDir )
+    import Paths_PROJECTNAME ( getDataDir )
 
-      resourcesDir <- getRsrcDir getDataDir
-   @
+    resourcesDir <- getRsrcDir getDataDir
+  @
+
+  If your binary is at @\/foo\/bar\/usr\/bin\/BINARY@, this library will generate
+  this path: @\/foo\/bar\/usr\/share\/PROJECTNAME-VERSION\/resources@
 -}
 getRsrcDir :: IO FilePath -> IO FilePath
 getRsrcDir cabalDataDir = do