diff --git a/migrations/versions/7c04_fold_plugin_schema.py b/migrations/versions/7c04_fold_plugin_schema.py
new file mode 100644
index 0000000..d95bd04
--- /dev/null
+++ b/migrations/versions/7c04_fold_plugin_schema.py
@@ -0,0 +1,85 @@
+"""Fold remaining plugin schema into the core chain
+
+Deploys run `flask db upgrade` (core chain) only, so the core chain must
+reproduce the full bundled schema. The core baseline already creates the
+plugin tables as of baseline time; this adds the post-baseline additions that
+previously lived only in per-plugin migrations (which deploys don't run):
+
+  - modelsupplies (printer model -> toner/drum/waste part numbers)
+  - computers.vendorid + computers.modelnumberid (PC make/model)
+  - computerinstalledapps.installedversion (collector version string)
+
+Idempotent: skips anything already present, so it is a no-op on the live DB
+(which already has these) and creates them on a fresh deploy.
+
+Revision ID: 7c04_fold_plugin_schema
+Revises: 7c03_locationtypes
+Create Date: 2026-06-26
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = '7c04_fold_plugin_schema'
+down_revision = '7c03_locationtypes'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    bind = op.get_bind()
+    insp = sa.inspect(bind)
+    tables = set(insp.get_table_names())
+
+    if 'modelsupplies' not in tables:
+        op.create_table(
+            'modelsupplies',
+            sa.Column('modelsupplyid', sa.Integer(), primary_key=True),
+            sa.Column('modelnumberid', sa.Integer(),
+                      sa.ForeignKey('models.modelnumberid'), nullable=False),
+            sa.Column('supplytype', sa.String(length=20), nullable=False,
+                      server_default='toner'),
+            sa.Column('color', sa.String(length=20), nullable=False,
+                      server_default='none'),
+            sa.Column('capacitytier', sa.String(length=20), nullable=False,
+                      server_default='standard'),
+            sa.Column('partnumber', sa.String(length=50), nullable=False),
+            sa.Column('marketingname', sa.String(length=120), nullable=True),
+            sa.Column('pageyield', sa.Integer(), nullable=True),
+            sa.Column('notes', sa.Text(), nullable=True),
+            sa.Column('createddate', sa.DateTime(), nullable=True),
+            sa.Column('modifieddate', sa.DateTime(), nullable=True),
+            sa.Column('isactive', sa.Boolean(), nullable=True),
+            sa.UniqueConstraint('modelnumberid', 'partnumber',
+                                name='uq_modelsupply_part'),
+        )
+        op.create_index('idx_modelsupplies_modelnumberid', 'modelsupplies',
+                        ['modelnumberid'])
+
+    comp_cols = {c['name'] for c in insp.get_columns('computers')}
+    with op.batch_alter_table('computers') as batch_op:
+        if 'vendorid' not in comp_cols:
+            batch_op.add_column(sa.Column('vendorid', sa.Integer(), nullable=True))
+            batch_op.create_foreign_key('fk_computers_vendor', 'vendors',
+                                        ['vendorid'], ['vendorid'])
+        if 'modelnumberid' not in comp_cols:
+            batch_op.add_column(sa.Column('modelnumberid', sa.Integer(), nullable=True))
+            batch_op.create_foreign_key('fk_computers_model', 'models',
+                                        ['modelnumberid'], ['modelnumberid'])
+
+    cia_cols = {c['name'] for c in insp.get_columns('computerinstalledapps')}
+    if 'installedversion' not in cia_cols:
+        op.add_column('computerinstalledapps',
+                      sa.Column('installedversion', sa.String(length=100),
+                                nullable=True))
+
+
+def downgrade():
+    op.drop_table('modelsupplies')
+    with op.batch_alter_table('computers') as batch_op:
+        batch_op.drop_constraint('fk_computers_model', type_='foreignkey')
+        batch_op.drop_constraint('fk_computers_vendor', type_='foreignkey')
+        batch_op.drop_column('modelnumberid')
+        batch_op.drop_column('vendorid')
+    op.drop_column('computerinstalledapps', 'installedversion')