diff --git a/legacy-snapshot/django-1.9.sql.gz b/legacy-snapshot/django-1.9.sql.gz
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diff --git a/legacy-snapshot/seed_extra.py b/legacy-snapshot/seed_extra.py
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+++ b/legacy-snapshot/seed_extra.py
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+# One-off: adds the kinds of rows a long-lived installation has (blog posts,
+# contact messages, hosting plans, supporters) on top of the sample data.
+# Run on the original Django 1.9 stack, see legacy-snapshot/README.md.
+from django.contrib.sites.models import Site
+from django.utils import timezone
+from djangocms_blog.models import BlogCategory, BlogConfig, Post
+
+from datacenterlight.models import ContactUs
+from digitalglarus.models import MembershipType, Supporter
+from hosting.models import HostingPlan
+from membership.models import CustomUser
+from utils.models import ContactMessage
+
+# start clean, so the script can be re-run
+for model in (Post, BlogCategory, ContactMessage, ContactUs, HostingPlan,
+              Supporter):
+    model.objects.all().delete()
+
+config = BlogConfig.objects.first()
+author = CustomUser.objects.get(email='dummy-admin@example.com')
+category = BlogCategory.objects.language('en').create(
+    name='Operations', app_config=config)
+for number in range(1, 9):
+    post = Post.objects.language('en').create(
+        title='Operations note {}'.format(number),
+        slug='operations-note-{}'.format(number),
+        abstract='<p>Short summary of note {}.</p>'.format(number),
+        app_config=config, author=author, publish=True,
+        date_published=timezone.now())
+    post.categories.add(category)
+    post.sites.add(Site.objects.get(domain='blog.ungleich.ch'))
+for number in range(1, 9):
+    ContactMessage.objects.create(
+        name='Visitor {}'.format(number),
+        email='visitor-{}@example.com'.format(number),
+        message='Question number {} about hosting.'.format(number))
+for number in range(1, 6):
+    ContactUs.objects.create(
+        name='Prospect {}'.format(number),
+        email='prospect-{}@example.com'.format(number),
+        message='Please send me an offer, request {}.'.format(number))
+for cores, memory, disk in [(1, 1, 10), (2, 4, 40), (4, 8, 100)]:
+    HostingPlan.objects.create(
+        cpu_cores=cores, memory=memory, disk_size=disk)
+for name in ['Hack4Glarus', 'Alpine Cloud', 'Linux Verein']:
+    Supporter.objects.create(name=name, description='Supports the project.')
+MembershipType.objects.get_or_create(name='standard', defaults={'price': 20})
+print('legacy extras ready')