diff --git a/README.md b/README.md
new file mode 100644
index 0000000..c9777a3
--- /dev/null
+++ b/README.md
@@ -0,0 +1,26 @@
+# Final Report
+
+This is a huge document that is a combination of a large number
+of other files from this course.
+
+This repository avoids commiting PDFs whenever possible (some files'
+original sources have been lost, and thus, only a PDF is available).
+Thus, LaTeX sources of all possible documents are submoduled,
+and compiled at build time.
+
+Some components of this document are generated from previously
+commited Markdown files to avoid redundancy. In particular,
+READMEs from all the code repositories and the REVIEW files
+containing code review feedback are used.
+
+For the most part (you still need to clone submodules),
+I specified the dependencies of this project in a Nix expression.
+Thus, to build this whole PDF:
+
+```
+nix-shell
+make
+```
+
+This should install all the required LaTeX packages and Pandoc,
+and generate an `archive.pdf` file.
diff --git a/default.nix b/default.nix
index f5ec924..1f4c1ac 100644
--- a/default.nix
+++ b/default.nix
@@ -3,8 +3,14 @@ with import <nixpkgs> {};
 mkShell {
   buildInputs = [
     pandoc
-    (python38.withPackages (ps: with ps; [ pip virtualenv ]))
-    (texlive.combine { inherit (texlive) listings framed booktabs pdfjam pdfpages pdflscape scheme-basic IEEEtran collection-fontsrecommended todonotes caption pgfgantt setspace; })
+    (texlive.combine {
+      inherit (texlive)
+      listings framed booktabs
+      pdfjam pdfpages pdflscape
+      scheme-basic IEEEtran
+      collection-fontsrecommended
+      todonotes caption pgfgantt
+      setspace; })
   ];
 }