diff --git a/fern/docs.yml b/fern/docs.yml
index f00aed5..3677056 100644
--- a/fern/docs.yml
+++ b/fern/docs.yml
@@ -32,6 +32,8 @@ navigation:
           slug: promptless-1-0
         - page: Setup & Quickstart
           path: ./docs/getting-started.mdx
+        - page: Promptless for Open Source
+          path: ./docs/open-source.mdx
         - page: Core Concepts
           path: ./docs/core-concepts.mdx
         - page: Getting Help
diff --git a/fern/docs/customer-stories/vellum.mdx b/fern/docs/customer-stories/vellum.mdx
index c0ca8f5..87b9e26 100644
--- a/fern/docs/customer-stories/vellum.mdx
+++ b/fern/docs/customer-stories/vellum.mdx
@@ -1,5 +1,6 @@
 ---
 title: How Vellum uses Promptless to draft over 50% of their doc updates
+subtitle: Published July 2025
 description: By democratizing documentation contributions, every team member now drives content—making docs a true team sport powered by Promptless.
 ---
 
diff --git a/fern/docs/life-at-promptless/paper-club.mdx b/fern/docs/life-at-promptless/paper-club.mdx
index 49714d2..fa4ffc5 100644
--- a/fern/docs/life-at-promptless/paper-club.mdx
+++ b/fern/docs/life-at-promptless/paper-club.mdx
@@ -1,5 +1,6 @@
 ---
 title: Running a Lightweight Research Paper Club
+subtitle: Published October 2025
 description: How we run a weekly paper club at Promptless that's surprisingly useful, surprisingly easy, and has led to tangible product improvements.
 ---
 
diff --git a/fern/docs/open-source.mdx b/fern/docs/open-source.mdx
new file mode 100644
index 0000000..698d0aa
--- /dev/null
+++ b/fern/docs/open-source.mdx
@@ -0,0 +1,41 @@
+---
+title: Promptless for Open Source
+---
+
+Promptless automatically drafts documentation updates for open source projects when code changes—no write access to your repository required.
+
+## How It Works
+
+When contributors open pull requests, Promptless analyzes the changes and suggests documentation updates. Since open source projects typically can't install GitHub apps with write access, Promptless uses a fork-based approach:
+
+1. Promptless maintains a fork of your documentation repository
+2. When documentation updates are needed, the `promptless-for-oss` service account creates a PR from that fork to your upstream repository
+3. You review and merge the PR just like any other community contribution
+
+Documentation PRs appear in your repository alongside other contributor PRs, maintaining full visibility for your maintainer team.
+
+## Getting Started
+
+<Steps>
+  <Step title="Create an account">
+    Sign up at [accounts.gopromptless.ai](https://accounts.gopromptless.ai)
+  </Step>
+  
+  <Step title="Connect GitHub (OSS)">
+    On the [integrations page](https://app.gopromptless.ai/integrations), find the **GitHub (OSS)** card and click **Connect GitHub (OSS)**. This installs a read-only GitHub app that monitors your repositories without requiring write access.
+  </Step>
+  
+  <Step title="Select your repositories">
+    Choose which open source repositories you want Promptless to monitor for documentation updates.
+  </Step>
+  
+  <Step title="Set up a doc collection">
+    Tell Promptless where your documentation lives by creating a doc collection. This could be a `/docs` folder in the same repo, a separate docs repository, or a documentation platform like Fern or Docusaurus. See [Doc Collections](/docs/configuration/doc-collections) for details.
+  </Step>
+</Steps>
+
+Once configured, Promptless monitors your selected repositories. When a PR is opened, it analyzes the changes and opens a documentation PR from a fork if updates are needed.
+
+## Questions?
+
+Contact us at help@gopromptless.ai—we're happy to help get your project set up.
diff --git a/fern/docs/product-updates/launch-week-dec-2025.mdx b/fern/docs/product-updates/launch-week-dec-2025.mdx
index 68ce2ac..6c693e0 100644
--- a/fern/docs/product-updates/launch-week-dec-2025.mdx
+++ b/fern/docs/product-updates/launch-week-dec-2025.mdx
@@ -1,5 +1,6 @@
 ---
 title: "Launch Week: December 2025"
+subtitle: Published December 2025
 description: Five major features we launched this December, from custom voice matching to automated screenshot updates.
 ---
 
diff --git a/fern/docs/technical/i-must-scream.mdx b/fern/docs/technical/i-must-scream.mdx
index 4a32024..7f74c6c 100644
--- a/fern/docs/technical/i-must-scream.mdx
+++ b/fern/docs/technical/i-must-scream.mdx
@@ -1,5 +1,6 @@
 ---
 title: "\"I Have No Mouth, and I Must Scream\""
+subtitle: Published January 2026
 description: What happens when you give an AI agent a Slack channel to complain in.
 ---