diff --git a/readme/dev.md b/readme/dev.md
index 04aed7425..a2ba6d9d1 100644
--- a/readme/dev.md
+++ b/readme/dev.md
@@ -77,7 +77,7 @@ please add `E2E_ENV=true` to your environment.
 
 The embed script is not automatically built when the dev server starts.
 
-Run the following command after changes to the `embed/index.ts` file:
+Run the following command after changes to the `embed/index.tsx` file:
 
 ```sh
 yarn dev:rollup
diff --git a/readme/testing-general.md b/readme/testing-general.md
index 12e4dd81f..cf6c71062 100644
--- a/readme/testing-general.md
+++ b/readme/testing-general.md
@@ -20,5 +20,5 @@ with example mocked event payloads defined in [the act/ directory](../act).
 After
 [installing the act library](https://nektosact.com/installation/index.html), you
 can run a given action like e.g.
-`act deployment_status -W ".github/workflows/performance-tests-pr.yml" -e act/deployment_status.json`,
+`act deployment_status -W ".github/workflows/performance-tests-pr.yaml" -e act/deployment_status.json`,
 modifying the event payload or adding a new one as needed.
diff --git a/readme/testing-performance.md b/readme/testing-performance.md
index 0b7134507..f3596ae5d 100644
--- a/readme/testing-performance.md
+++ b/readme/testing-performance.md
@@ -60,8 +60,7 @@ k6 run k6/script-name.js
 
 replacing the `script-name` with an actual name of the test you want to run.
 Optionally, you can tweak the configuration of each test by directly modifying
-the `options` object inside a given script and running `yarn k6:codegen` to make
-the JavaScript files up-to-date.
+the `options` object inside a given script.
 
 For the GraphQL tests, you'll also need to pass `--env ENV=(test|int|prod)` flag
 to point to the proper environment and