1 files changed, 14 insertions, 2 deletions
diff --git a/chaski/services/tracktrain.nix b/chaski/services/tracktrain.nix
index bd99abf..ade9b68 100644
--- a/chaski/services/tracktrain.nix
+++ b/chaski/services/tracktrain.nix
@@ -1,5 +1,17 @@
 { config, lib, pkgs, inputs, ... }:
 
+let
+  # this gets rid of the implicit dependency on ghc, reducing closure size
+  stripLib = drv: pkgs.stdenv.mkDerivation {
+    name = drv.name + "-without-lib";
+    src = drv.outPath;
+    buildPhase = ''
+      mkdir -p $out
+      cp -r $src/bin $out
+    '';
+    phases = [ "buildPhase" ];
+  };
+in
 {
   services.nginx.virtualHosts."tracktrain.stuebinm.eu" = {
     locations."/" = {
@@ -36,13 +48,13 @@
         script = ''
           cd /tmp
           wget "https://ilztalbahn.eu/wp-content/uploads/2020/07/gtfs.zip"
-          ${((import inputs.tracktrain {nixpkgs = pkgs;}))
+          ${stripLib (((import inputs.tracktrain {nixpkgs = pkgs;}))
             # have to remove version constraints because some aren't in 22.05
             .overrideAttrs (old: { patchPhase = ''
               sed -i "s/base.*/base/g" *.cabal
               sed -i "s/^>=.*//g" *.cabal
               sed -i "s/>=.*//g" *.cabal
-            ''; })
+            ''; }))
            }/bin/tracktrain "dbname=tracktrain user=tracktrain"
         '';
         startAt = "daily";