diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -95,22 +95,29 @@
 available from [Hackage](https://hackage.haskell.org/); no external
 C libraries are required.
 
-The recommended way to install a Haskell toolchain is via
-[`ghcup`](https://www.haskell.org/ghcup/):
+`danecheck` is tested against GHC 9.10.3, 9.12.4 and 9.14.1; any of
+these will work.  Use whichever your system already provides, or the
+most recent one if you're starting fresh.
 
-    $ curl --proto '=https' --tlsv1.2 -sSf \
-          https://get-ghcup.haskell.org | sh
+Some systems have packages for one or more of the supported
+compiler versions.  For example:
 
-Once `ghcup` is installed, fetch GHC and `cabal-install`:
+  - Fedora 43 has `ghc9.10-devel` and `ghc9.12-devel` meta packages
+    that can obviate the need for "ghcup", or make it possible to
+    build "ghcup" from source.
 
+  - For MacOS `ghcup`, `ghc@9.10` and `ghc@9.12` are available via
+    `homebrew`.
+
+Alternatively, you can install the Haskell toolchain via
+[`ghcup`](https://www.haskell.org/ghcup/).  Once `ghcup` is
+[installed](https://www.haskell.org/ghcup/install/),
+fetch GHC and `cabal-install`:
+
     $ ghcup install ghc 9.12.4
     $ ghcup set     ghc 9.12.4
     $ ghcup install cabal recommended
 
-`danecheck` is tested against GHC 9.10.3, 9.12.4 and 9.14.1; any of
-these will work.  Use whichever your system already provides, or the
-most recent one if you're starting fresh.
-
 **Disk space note**: each GHC toolchain installed by `ghcup` is
 substantial — a single GHC takes roughly **2.2–3.0 GB** under
 `~/.ghcup/ghc/<version>/`.  By comparison the cabal package store
@@ -138,7 +145,7 @@
 
   or add the same line to your own `cabal.project` / cabal config.
 
-GHC 9.10.3 and 9.12.4 build cleanly in either scenario without any
+GHC 9.10.3 and 9.12.4 build `danecheck` in either scenario without any
 workaround.
 
 ### Compile and install danecheck
diff --git a/danecheck.cabal b/danecheck.cabal
--- a/danecheck.cabal
+++ b/danecheck.cabal
@@ -1,7 +1,7 @@
-cabal-version: 3.12
+cabal-version: 3.0
 
 Name:                danecheck
-Version:             1.0.0.0
+Version:             1.0.0.1
 Synopsis:            DANE SMTP validator
 Description:
     @danecheck@ is a diagnostic tool that verifies the