Add tooling for building in nix

.envrc

@@ -0,0 +1 @@
+use nix

build.sh

@@ -12,7 +12,7 @@ mkdir -p public
 cp index.html photo.jpg resume.yml resume.json public
 npx resume export public/resume.html --theme $theme
 if [[ -z $flag || $flag != "--no-pdf" ]]; then
-    npx resume export public/resume.pdf --theme $theme
+	puppeteer print public/resume.html public/resume.pdf
 fi
 rm resume.json
 

shell.nix

@@ -0,0 +1,11 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+with pkgs;
+
+mkShell {
+  buildInputs = [
+    just
+    puppeteer-cli
+    nodejs
+  ];
+}