nix: add flake

flake.nix

@@ -0,0 +1,52 @@
+{
+  description = "Ambroisie's CV";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs";
+    futils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, futils } @ inputs:
+    futils.lib.eachSystem futils.lib.allSystems (system:
+      let
+        inherit (nixpkgs) lib;
+        pkgs = nixpkgs.legacyPackages.${system};
+        buildInputs = with pkgs; [
+          gnumake
+          pandoc
+          (texlive.combine {
+            inherit (texlive)
+            scheme-small
+            # Extra packages needed
+            changepage
+            enumitem
+            placeins
+            ;
+          })
+        ];
+      in
+      {
+        devShell = pkgs.mkShell {
+          name = "report";
+          inherit buildInputs;
+        };
+
+        defaultPackage = pkgs.stdenvNoCC.mkDerivation {
+          pname = "report";
+          version = self.rev or "dirty";
+          src = ./.;
+
+          inherit buildInputs;
+
+          buildPhase = ''
+            make
+          '';
+
+          installPhase = ''
+            mkdir -p $out
+            cp report.pdf $out/
+          '';
+        };
+      }
+    );
+}