content: write HardenedPass using pages

Entries, OTP codes, sync with conflict recovery and autofill, in both
languages, with screenshots from the test store. Still drafts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2 files changed, 57 insertions, 4 deletions

diff --git a/content/en/hardenedpass/using/sync/index.md b/content/en/hardenedpass/using/sync/index.md
index 271c72c..2351d5b 100644
--- a/content/en/hardenedpass/using/sync/index.md
+++ b/content/en/hardenedpass/using/sync/index.md
@@ -1,13 +1,66 @@
 +++
 title = "Sync"
 date = 2026-11-05T00:00:00Z
-description = ""
+description = "How HardenedPass syncs your store with git: when changes are committed, how to pull and push, and how to recover from a conflict."
 weight = 70
 draft = true
 +++
 
-Placeholder.
+Every change you make in the app, such as a new entry, an edit or a delete, is
+committed to git on the phone straight away. **Nothing is sent to the server until you
+sync.** Until then, the change exists only on this phone.
 
-## First heading
+## Sync
 
-Text.
+Pull down on the list to synchronize. You can also use the three dots in the search
+bar:
+
+{{< image src="menu.png" alt="The list's menu with Synchronize repository, Pull from remote, Push to remote and Settings." class="max-w-sm mx-auto rounded-lg border border-border" />}}
+
+- **Synchronize repository** fetches the server's changes and sends yours.
+- **Pull from remote** only fetches.
+- **Push to remote** only sends.
+
+Synchronize is what you want almost every time. To turn the gesture off, use
+**Disable pull to sync action** in
+[Settings]({{< relref "/hardenedpass/reference/settings" >}}).
+
+## When two devices change the same thing
+
+If you edit the same entry on the phone and on a computer before syncing, git cannot
+pick a winner. The app uses a rebase by default (**Rebase on pull**), and the sync
+stops with an error saying the pull failed and that you are in a detached head. Your
+work is not lost.
+
+Open **Settings**, then **Local Git config & utilities**. You have two ways out:
+
+### Keep your changes
+
+**Abort rebase and push new branch** cancels the rebase and sends your local work to a
+new branch on the server. The app tells you its name. Then, on a computer:
+
+```bash
+pass git fetch origin
+pass git merge origin/BRANCH-NAME
+```
+
+Git stops on the entries that conflict. Encrypted files cannot be merged line by line,
+so keep one version of each, finish the merge, and send it back with `pass git push`.
+On the phone, finish with the hard reset below, so that the phone matches the server
+again.
+
+### Throw your changes away
+
+**Hard reset to remote branch** asks for the branch name, then makes the phone an exact
+copy of it.
+
+{{< callout type="warning" >}}
+A hard reset discards local commits and changes that are not on that remote branch. Use
+it only when you are sure, or after saving your work with the option above.
+{{< /callout >}}
+
+## Other tools
+
+The same screen sets the name and email used for commits, shows the commit log with
+**Show commit log**, and offers **Run garbage collection job** to tidy up the local
+repository.
diff --git a/content/en/hardenedpass/using/sync/menu.png b/content/en/hardenedpass/using/sync/menu.png
new file mode 100644
index 0000000..a03da57
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+++ b/content/en/hardenedpass/using/sync/menu.png