feat: able to build the constitution

flake.nix

@@ -36,6 +36,16 @@
           ];
         };
       };
+
+      tex = pkgs.texlive.combine {
+                              #scheme-full
+        inherit (pkgs.texlive) scheme-full latex-bin latexmk;
+      };
+
+      vars = [ "sender" "receiver" ];
+      texvars = toString
+        (pkgs.lib.imap1 (i: n: ''\def\${n}{${"$" + (toString i)}}'') vars);
+
     in rec {
       # `nix develop`
       devShell = pkgs.mkShell {
@@ -48,6 +58,25 @@
       };
 
       packages = {
+        # using https://flyx.org/nix-flakes-latex/ as a basic
+        constitution = pkgs.stdenvNoCC.mkDerivation rec {
+         name = "ul_computer-society_constitution";
+         src = self;
+          buildInputs = [ pkgs.coreutils tex ];
+          phases = ["unpackPhase" "buildPhase" "installPhase"];
+          buildPhase = ''
+            export PATH="${pkgs.lib.makeBinPath buildInputs}";
+            # have to do it 3 times to get teh table of contents working properly
+            pdflatex -file-line-error -interaction=nonstopmode -synctex=1 -output-format=pdf Resources/Documents/Constitution.tex || true
+            pdflatex -file-line-error -interaction=nonstopmode -synctex=1 -output-format=pdf Resources/Documents/Constitution.tex || true
+            pdflatex -file-line-error -interaction=nonstopmode -synctex=1 -output-format=pdf Resources/Documents/Constitution.tex || true
+          '';
+          installPhase = ''
+            mkdir -p $out
+            cp Constitution.pdf $out/
+          '';
+       };
+
         handovers = pkgs.writeShellScriptBin "format_handovers" ''
           export PATH=${pkgs.lib.makeBinPath [pkgs.wkhtmltopdf bfom.defaultPackage.x86_64-linux]}:$PATH
           ${./_scripts/format_handovers.sh}