diff --git a/ci/eval/README.md b/ci/eval/README.md
index 020e7127f51a9..ecf9a82c0b048 100644
--- a/ci/eval/README.md
+++ b/ci/eval/README.md
@@ -5,8 +5,8 @@ The code in this directory is used by the [eval.yml](../../.github/workflows/eva
 Furthermore it also allows local evaluation using
 ```
 nix-build ci -A eval.full \
-  --max-jobs 4
-  --cores 2
+  --max-jobs 4 \
+  --cores 2 \
   --arg chunkSize 10000
 ```
 
diff --git a/ci/supportedSystems.nix b/ci/supportedSystems.nix
index 471f84b92fc24..c97832a94febc 100644
--- a/ci/supportedSystems.nix
+++ b/ci/supportedSystems.nix
@@ -1,6 +1,11 @@
 [
-  "aarch64-linux"
   "aarch64-darwin"
-  "x86_64-linux"
+  "aarch64-linux"
   "x86_64-darwin"
+  "x86_64-linux"
+
+  # The only thing "supported" here is preventing eval failures
+  # "x86_64-cygwin"
+  # "x86_64-freebsd"
+  "x86_64-musl"
 ]
diff --git a/pkgs/top-level/release-lib.nix b/pkgs/top-level/release-lib.nix
index c7581c47d3414..5bbaaf68bfc37 100644
--- a/pkgs/top-level/release-lib.nix
+++ b/pkgs/top-level/release-lib.nix
@@ -57,6 +57,7 @@ let
     pkgs_i686_freebsd = packageSet' { system = "i686-freebsd"; };
     pkgs_i686_cygwin = packageSet' { system = "i686-cygwin"; };
     pkgs_x86_64_cygwin = packageSet' { system = "x86_64-cygwin"; };
+    pkgs_x86_64_musl = packageSet' { config = "x86_64-unknown-linux-musl"; isStatic = true; };
 
     in system:
       if system == "x86_64-linux" then pkgs_x86_64_linux
@@ -71,6 +72,7 @@ let
       else if system == "i686-freebsd" then pkgs_i686_freebsd
       else if system == "i686-cygwin" then pkgs_i686_cygwin
       else if system == "x86_64-cygwin" then pkgs_x86_64_cygwin
+      else if system == "x86_64-musl" then pkgs_x86_64_musl
       else abort "unsupported system type: ${system}";
 
   pkgsFor = pkgsForCross null;