diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..4fa4396
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,15 @@
+{ pkgs ? import <nixpkgs> {} }:
+let 
+  name = "earth";
+  builder = ./importers/owid.sh;
+  src = ./sources/cumulative_co2_emissions.csv;
+
+  csvsToSqlite = pkgs.csvs-to-sqlite;
+in
+  pkgs.stdenv.mkDerivation {
+    name = "${name}.db";
+    inherit src;
+    inherit builder;
+
+    inherit csvsToSqlite;
+  }
diff --git a/importers/owid.sh b/importers/owid.sh
new file mode 100644
index 0000000..45eed2d
--- /dev/null
+++ b/importers/owid.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+${csvsToSqlite}/bin/csvs-to-sqlite \
+    --shape 'Entity:entity(text),Code:code(text),Year:year(integer),Cumulative CO2 emissions:cumulative_co2_emissions(real)' \
+    --index entity \
+    --index code \
+    --index year \
+    --replace-tables \
+    $src $out