diff --git a/README.md b/README.md
index 02795ec6d..692bc480e 100644
--- a/README.md
+++ b/README.md
@@ -3,13 +3,39 @@ OPAM repo for OCaml multicore development
 
 ## Install Multicore OCaml
 
+**`parallel_minor_gc`**
+
 ```
 opam update
 opam switch create 4.10.0+multicore --packages=ocaml-variants.4.10.0+multicore --repositories=multicore=git+https://github.com/ocaml-multicore/multicore-opam.git,default
 ```
 
+**`no_effect_syntax`**
+
+```
+opam update
+opam switch create 4.10.0+multicore+no-effect-syntax --packages=ocaml-variants.4.10.0+multicore+no-effect-syntax --repositories=multicore=git+https://github.com/ocaml-multicore/multicore-opam.git,default
+```
+
 ## Installing domainslib
 
 ```
-opam install dune.2.7.1 domainslib
+opam install dune domainslib
+```
+
+## Install ocaml-lsp and merlin
+
+On Visual Studio Code, it is recommended to use `ocaml-lsp-server` with [VSCode OCaml Platform](https://marketplace.visualstudio.com/items?itemName=ocamllabs.ocaml-platform)
+
+**`parallel_minor_gc`**
+
+```
+opam install dune merlin.3.4.1 dot-merlin-reader.3.4.1 ocaml-lsp-server
+```
+
+**`no-effect-syntax`**
+
+```
+opam install dune merlin.3.4.1 dot-merlin-reader.3.4.1
+opam pin add ocaml-lsp-server --repositories=default
 ```