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Upload the image using the C<titan> script:

    perl5/bin/titan --url=titan://localhost:1965/jupiter.jpg \
      --token=hello Pictures/Planets/Juno.jpg

You should get back a redirect to the uploaded image:

    30 gemini://localhost:1965/file/jupiter.jpg

How did the C<titan> script know the MIME-type to use for the upload? If you
don't specify a MIME-type using C<--mime>, the C<file> utility is called to
guess the MIME type of the file.

Test it:

    file --mime-type --brief Pictures/Planets/Juno.jpg

The result is the MIME-type we enabled for our wiki:

    image/jpeg

Here's what happens when you're trying to upload an unsupported MIME-type:

    titan --url=titan://localhost:1965/earth.png \
      --token=hello Pictures/Planets/Earth.png

What you get back explains the problem:

    59 This wiki does not allow image/png

In order to allow such graphics as well, you need to restart Phoebe:

    phoebe --wiki_mime_type=image/jpeg --wiki_mime_type=image/png

Except that in my case, the image is too big:

    59 This wiki does not allow more than 100000 bytes per page

I could scale it down before I upload the image, using C<convert> (which is part
of ImageMagick):

    convert -scale 20% Pictures/Planets/Earth.png earth-small.png

Try again:

    titan --url=titan://localhost:1965/earth.png \
      --token=hello earth-small.png

Alternatively, you can increase the size limit using the
C<--wiki_page_size_limit> option, but you need to restart Phoebe:

    phoebe --wiki_page_size_limit=10000000 \
      --wiki_mime_type=image/jpeg --wiki_mime_type=image/png

Now you can upload about 10MB…

=head2 Using systemd

Systemd is going to handle daemonisation for us. There's more documentation
available online.
L<https://www.freedesktop.org/software/systemd/man/systemd.service.html>.

Basically, this is the template for our service:

    [Unit]
    Description=Phoebe
    After=network.target
    [Service]
    Type=simple
    WorkingDirectory=/home/phoebe
    ExecStart=/home/phoebe/phoebe
    Restart=always
    User=phoebe
    Group=phoebe
    MemoryMax=100M
    MemoryHigh=90M
    [Install]
    WantedBy=multi-user.target

Save this as F<phoebe.service>, and then link it:

    sudo ln -s /home/phoebe/phoebe.service /etc/systemd/system/

Reload systemd:

    sudo systemctl daemon-reload

Start Phoebe:

    sudo systemctl start phoebe

Check the log output:

    sudo journalctl --unit phoebe

=head2 Troubleshooting

🔥 B<1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher> 🔥 If you
created a new certificate and key using elliptic curves using an older OpenSSL,
you might run into this. Try to create a RSA key instead. It is larger, but at
least it'll work.

    openssl req -new -x509 -newkey rsa \
    -days 1825 -nodes -out cert.pem -keyout key.pem

=head1 FILES

Your home directory should now also contain a wiki directory called F<wiki>,
your wiki directory. In it, you'll find a few more files:

F<page> is the directory with all the page files in it; each file has the C<gmi>
extension and should be written in Gemtext format

F<index> is a file containing all the files in your F<page> directory for quick
access; if you create new files in the F<page> directory, you should delete the
F<index> file – it will get regenerated when needed; the format is one page name
(without the C<.gmi> extension) per line, with lines separated from each other
by a single C<\n>

F<keep> is the directory with all the old revisions of pages in it – if you've
only made one change, then it won't exist; if you don't care about the older