diff --git a/sophon/core/migrations/0001_initial.py b/sophon/core/migrations/0001_initial.py
new file mode 100644
index 0000000..1b2bc99
--- /dev/null
+++ b/sophon/core/migrations/0001_initial.py
@@ -0,0 +1,65 @@
+# Generated by Django 3.1.7 on 2021-04-04 23:41
+# Manually edited by @Steffo99
+
+from django.db import migrations, models
+
+
+def create_builtin_sources(apps, schema_editor):
+    """
+    Create in the database the sources that are already built-in in :mod:`pandasdmx`.
+
+    This function is called when performing the migration: see
+    `this page <https://docs.djangoproject.com/en/3.1/topics/migrations/#data-migrations>`_ for details on how this
+    works!
+    """
+    DataSource = apps.get_model("core", "DataSource")
+    DataSource.objects.bulk_create([
+        DataSource(pandasdmx_id="ABS", builtin=True),
+        DataSource(pandasdmx_id="ESTAT", builtin=True),
+        DataSource(pandasdmx_id="ECB", builtin=True),
+        DataSource(pandasdmx_id="ILO", builtin=True),
+        DataSource(pandasdmx_id="IMF", builtin=True),
+        DataSource(pandasdmx_id="INEGI", builtin=True),
+        DataSource(pandasdmx_id="INSEE", builtin=True),
+        DataSource(pandasdmx_id="ISTAT", builtin=True),
+        DataSource(pandasdmx_id="LSD", builtin=True),
+        DataSource(pandasdmx_id="NB", builtin=True),
+        DataSource(pandasdmx_id="NBB", builtin=True),
+        DataSource(pandasdmx_id="OECD", builtin=True),
+        DataSource(pandasdmx_id="SGR", builtin=True),
+        DataSource(pandasdmx_id="SPC", builtin=True),
+        DataSource(pandasdmx_id="STAT_EE", builtin=True),
+        DataSource(pandasdmx_id="UNSD", builtin=True),
+        DataSource(pandasdmx_id="UNICEF", builtin=True),
+        DataSource(pandasdmx_id="WB", builtin=True),
+        DataSource(pandasdmx_id="WB_WDI", builtin=True),
+    ])
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='DataSource',
+            fields=[
+                ('pandasdmx_id', models.CharField(max_length=16, primary_key=True, serialize=False, verbose_name='Internal pandasdmx source id')),
+                ('builtin', models.BooleanField(verbose_name='If the source is builtin in pandasdmx')),
+                ('settings', models.JSONField(null=True, verbose_name='Source info to pass to pandasdmx if the source is not builtin')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Project',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=512, verbose_name='Project name')),
+                ('description', models.CharField(max_length=8192, verbose_name='Project description')),
+                ('sources', models.ManyToManyField(related_name='used_in', to='core.DataSource')),
+            ],
+        ),
+        migrations.RunPython(create_builtin_sources)
+    ]