diff --git a/nix/elm-srcs.nix b/nix/elm-srcs.nix
new file mode 100644
index 0000000..f625dd9
--- /dev/null
+++ b/nix/elm-srcs.nix
@@ -0,0 +1,72 @@
+{
+
+      "rtfeldman/elm-sorter-experiment" = {
+        sha256 = "1vvvsg2axss25f7ilwk2pyhznv026bq3kj2fr8h2107g1lbgyabq";
+        version = "2.1.1";
+      };
+
+      "elm/html" = {
+        sha256 = "1n3gpzmpqqdsldys4ipgyl1zacn0kbpc3g4v3hdpiyfjlgh8bf3k";
+        version = "1.0.0";
+      };
+
+      "robinheghan/murmur3" = {
+        sha256 = "15asmgr2zqh7rkywrg5647rpdqkpzxk02v5qc6ndj60jza3gsmjk";
+        version = "1.0.0";
+      };
+
+      "elm/browser" = {
+        sha256 = "0nagb9ajacxbbg985r4k9h0jadqpp0gp84nm94kcgbr5sf8i9x13";
+        version = "1.0.2";
+      };
+
+      "rtfeldman/elm-css" = {
+        sha256 = "189pf91bdpyz4qyilbzjh2mj3x46j7abb9asnkiv1chzvhcamrn5";
+        version = "16.1.1";
+      };
+
+      "elm/core" = {
+        sha256 = "19w0iisdd66ywjayyga4kv2p1v9rxzqjaxhckp8ni6n8i0fb2dvf";
+        version = "1.0.5";
+      };
+
+      "elm/url" = {
+        sha256 = "0av8x5syid40sgpl5vd7pry2rq0q4pga28b4yykn9gd9v12rs3l4";
+        version = "1.0.0";
+      };
+
+      "elm-community/graph" = {
+        sha256 = "1rwsq2126q0rb4vmy95ajxfm3m063d6lw0p90d510nzcrbm9bxbc";
+        version = "6.0.0";
+      };
+
+      "elm/json" = {
+        sha256 = "0kjwrz195z84kwywaxhhlnpl3p251qlbm5iz6byd6jky2crmyqyh";
+        version = "1.1.3";
+      };
+
+      "avh4/elm-fifo" = {
+        sha256 = "1ka0iz2psr75h4qz7hh5z1prclah1nais9aaycaxapfd7inqmrrc";
+        version = "1.0.4";
+      };
+
+      "rtfeldman/elm-hex" = {
+        sha256 = "1y0aa16asvwdqmgbskh5iba6psp43lkcjjw9mgzj3gsrg33lp00d";
+        version = "1.0.0";
+      };
+
+      "elm-community/intdict" = {
+        sha256 = "09i1fk63gp6sr6kc6ccs8g0kxvqhw5czghi9cl8flizanrgcmva1";
+        version = "3.0.0";
+      };
+
+      "elm/time" = {
+        sha256 = "0vch7i86vn0x8b850w1p69vplll1bnbkp8s383z7pinyg94cm2z1";
+        version = "1.0.0";
+      };
+
+      "elm/virtual-dom" = {
+        sha256 = "0q1v5gi4g336bzz1lgwpn5b1639lrn63d8y6k6pimcyismp2i1yg";
+        version = "1.0.2";
+      };
+}
diff --git a/nix/registry.dat b/nix/registry.dat
new file mode 100644
index 0000000..3790937
Binary files /dev/null and b/nix/registry.dat differ
diff --git a/scripts/update-elm2nix.sh b/scripts/update-elm2nix.sh
new file mode 100755
index 0000000..a29fe8b
--- /dev/null
+++ b/scripts/update-elm2nix.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -euo pipefail
+set -x
+
+(
+  cd sample-app
+
+  elm2nix convert > ../nix/elm-srcs.nix
+  elm2nix snapshot
+  mv registry.dat ../nix/registry.dat
+)
diff --git a/shell.nix b/shell.nix
index a80849d..7588840 100644
--- a/shell.nix
+++ b/shell.nix
@@ -8,6 +8,7 @@ in pkgs.mkShell {
     niv.niv
     pkgs.git
 
+    pkgs.elm2nix
     pkgs.elmPackages.elm
     pkgs.elmPackages.elm-format
     pkgs.elmPackages.elm-json