diff --git a/README.md b/README.md
index 351f8f1..f86f3ce 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,12 @@ pnpm start -- --no-render
 # parameters for GEGL operations.
 pnpm start -- --include-defaults
 
+# Run only the projects starting with a given name.
+pnpm start -- --filter 2022-03
+
+# See all the other options.
+pnpm start -- --help
+
 # Lint the code and run tests.
 pnpm test
 ```
diff --git a/source/driftingnebula.ts b/source/driftingnebula.ts
index 5ebbc8e..7269708 100644
--- a/source/driftingnebula.ts
+++ b/source/driftingnebula.ts
@@ -19,6 +19,7 @@ async function main(): Promise<void> {
   const cli = meow(
     `
     Options
+      --filter <name>    Only render projects starting with <name>.
       --include-defaults Include default GEGL operation parameters.
       --no-render        Don't render any images.
     `,