diff --git a/tools/support/README.md b/tools/support/README.md
index c0efd0902..72060bc65 100644
--- a/tools/support/README.md
+++ b/tools/support/README.md
@@ -6,3 +6,8 @@ autoclosing etc.
 The extension was created for development purposes only. It is not maintained
 and its grammar is not 100% accurate. For a more actively developed extension
 see the third-party [Typst LSP](https://github.com/nvarner/typst-lsp).
+
+## Installation
+The simplest way to install this extension (and keep it up-to-date) is to add a
+symlink from `~/.vscode/extensions/typst-support` to
+`path/to/typst/tools/support`.
diff --git a/tools/test-helper/README.md b/tools/test-helper/README.md
index 45e0f6e2b..c9226a23f 100644
--- a/tools/test-helper/README.md
+++ b/tools/test-helper/README.md
@@ -12,3 +12,8 @@ the `tests` folder.
 
 For the test helper to work correctly, you also need to install `oxipng`, for
 example with `cargo install oxipng`.
+
+## Installation
+The simplest way to install this extension (and keep it up-to-date) is to add a
+symlink from `~/.vscode/extensions/typst-test-helper` to
+`path/to/typst/tools/test-helper`.