## Mod Rewrite on Ubuntu
On Ubuntu Server, rewrite is disabled by default. (On Xampp, it is enabled by default.)

See [here](https://www.digitalocean.com/community/tutorials/how-to-rewrite-urls-with-mod_rewrite-for-apache-on-ubuntu-20-04)
Basically you need
```bash
sudo sudo a2enmod rewrite
```
then in e.g. `/etc/apache2/sites-available/000-default.conf` you add
```plaintext
<VirtualHost pt1:80>
...
  <Directory /var/www/pt1>
    Options Indexes FollowSymLinks
    AllowOverride All
    Require all granted
  </Directory>
</VirtualHost>
```
where for example my local copy of purple tree is on my Lan at http://pt1/

Then you need to
```bash
sudo systemctl apache2 restart
```

So **you can have a Purple Tree Wiki v1 on your Lan for personal note taking**, without worrying about sync'ing. Not quite as full featured as Obsidian, but tiny and very hackable so far as adding features is concerned.