> ## Documentation Index
> Fetch the complete documentation index at: https://www.towbar.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Memos

> Memos is a lightweight place to capture and share short notes.

export const UseCaseNavigation = () => {
  useLayoutEffect(() => {
    const storageKey = "towbar-use-case-open-groups";
    const groupSelector = "#sidebar li[data-title] > button[aria-expanded]";
    let restoring = false;
    let frame = 0;
    function storedGroups() {
      try {
        return new Set(JSON.parse(sessionStorage.getItem(storageKey) || "[]"));
      } catch {
        return new Set();
      }
    }
    function save(groups) {
      try {
        sessionStorage.setItem(storageKey, JSON.stringify([...groups]));
      } catch {}
    }
    function groupName(button) {
      return button.parentElement?.dataset.title;
    }
    function rememberOpenGroups() {
      const groups = new Set();
      for (const button of document.querySelectorAll(groupSelector)) {
        if (button.getAttribute("aria-expanded") === "true") {
          const name = groupName(button);
          if (name) groups.add(name);
        }
      }
      save(groups);
    }
    function restoreOpenGroups() {
      frame = 0;
      const groups = storedGroups();
      if (!groups.size) return;
      restoring = true;
      for (const button of document.querySelectorAll(groupSelector)) {
        if (groups.has(groupName(button)) && button.getAttribute("aria-expanded") === "false") {
          button.click();
        }
      }
      restoring = false;
    }
    function scheduleRestore() {
      if (!frame) frame = requestAnimationFrame(restoreOpenGroups);
    }
    function onClick(event) {
      if (restoring || !(event.target instanceof Element)) return;
      const button = event.target.closest(groupSelector);
      if (button) {
        const name = groupName(button);
        if (!name) return;
        const groups = storedGroups();
        if (button.getAttribute("aria-expanded") === "true") groups.delete(name); else groups.add(name);
        save(groups);
        return;
      }
      if (event.target.closest('a[href^="/docs/use-cases/"]')) {
        rememberOpenGroups();
      }
    }
    const observer = new MutationObserver(scheduleRestore);
    document.addEventListener("click", onClick, true);
    observer.observe(document.getElementById("sidebar") || document.body, {
      childList: true,
      subtree: true
    });
    scheduleRestore();
    return () => {
      document.removeEventListener("click", onClick, true);
      observer.disconnect();
      cancelAnimationFrame(frame);
    };
  }, []);
  return null;
};

<UseCaseNavigation />

**Upstream source:** [Current installation guide](https://usememos.com/docs/deploy/docker-compose).

Memos uses SQLite for a simple first deployment and stores its database and local assets under `/var/opt/memos`. Set the external URL to the same HTTPS address as Towbar's route.

## Towbar manifest

```yaml title=".towbar/services/memos.service.yml" theme={"system"}
id: memos
name: Memos
buildServer: null
deployment:
  type: image
  image: neosmemo/memos@sha256:24c2707ddd8fbd2ceaa7a61ecab86a53cdcde640b24ce572b73da14b00b5785f
container:
  port: 5230
  volumes:
    - name: memos
      mountPath: /var/opt/memos
      initialData: image
environments:
  production:
    server: 192.0.2.10
rollout:
  type: recreate
  maintenanceMode: true
  reason: Persistent application data uses a single writer
secrets:
  runtime:
    - MEMOS_INSTANCE_URL
domains:
  primary: memos.example.com
tls:
  mode: direct
```

## Configure

1. Prepare the example server, connect the repository, and map `production` to the branch containing these manifests. Replace the example server IP and domain. Commit the manifests, then sync the repository and inspect the resolved configuration.
2. Set the Service's declared runtime values under **Service → Settings → Secrets** using the table below. Replace descriptions and placeholders with actual values; do not commit passwords or keys.
3. Keep the Service's named volumes attached across deployments. Towbar's Datastore backup policy does not back up Service volumes, so include them in your own recovery plan.
4. Deploy the Service, then perform the checks below before enabling auto-deploy.

## Runtime values

Save these values on the Service after the repository sync. The manifest declares required keys, not their values.

| Key                  | Value to save                                          |
| -------------------- | ------------------------------------------------------ |
| `MEMOS_INSTANCE_URL` | [https://memos.example.com](https://memos.example.com) |

## Verify

Create a note and attach a small file, then redeploy and confirm both remain. Include the Service volume in backups.

For field constraints, see [Service manifest](/docs/services/manifest).