diff --git a/README.md b/README.md
index 8218ab3..5681aeb 100644
--- a/README.md
+++ b/README.md
@@ -5,3 +5,11 @@ camlboot is an experiment on the boostraping of the [OCaml](https://ocaml.org/)
 - An interpreter of OCaml, in the directory `interpreter/`, which is able to interpret the OCaml compiler. This interpreter is written in a subset of OCaml called miniml, for which a compiler is available as part of the experiment.
 - A compiler for miniml, in the directory `miniml/compiler/`. This compiler compiles miniml to OCaml bytecode, which is then executed by the OCaml runtime. It is written in scheme (more specifically, [guile](https://www.gnu.org/software/guile/)), since the goal is to bootstrap OCaml. Note that guile is itself bootstrapped directly from gcc, and building OCaml needs a C compiler as well, so we effectively bootstrap OCaml from gcc.
 - A handwritten lexer for the bootstrapping of ocamllex, in the directory `lex/`. This lexer is able to perform the lexing of ocamllex's own `lexer.mll`, the first step towards the bootstrap of ocamllex, and then OCaml.
+
+## Compilation:
+
+After cloning, you first need to clone the `ocaml/` submodule, with `git submodule init && git submodule update --recursive`.
+You will also need a C compiler, and `guile`.
+
+Then you can perform `make -j$(nproc) _boot/ocamlc && make -j$(nproc) fullboot`, which will compile a bootstrap compiler, and use it to fully bootstrap OCaml from sources. The resulting bytecode should be bit-for-bit compatible with the one you can get by compiling the code in the `ocaml-src/` submodule with its own bundled bootstrap compiler.
+Expect this to take some time: on an 8-core machine, it took about 16 hours of CPU time, and 4 hours of wall-clock time.