diff --git a/db/migrations/20250728054639_create_schema.sql b/db/migrations/20250728054639_create_schema.sql
new file mode 100644
index 0000000..c37a826
--- /dev/null
+++ b/db/migrations/20250728054639_create_schema.sql
@@ -0,0 +1,5 @@
+-- migrate:up
+CREATE SCHEMA yore;
+
+-- migrate:down
+DROP SCHEMA yore;
diff --git a/db/migrations/20250728060412_create_index.sql b/db/migrations/20250728060412_create_index.sql
new file mode 100644
index 0000000..19b58d5
--- /dev/null
+++ b/db/migrations/20250728060412_create_index.sql
@@ -0,0 +1,15 @@
+-- migrate:up
+CREATE TABLE yore.day_index (
+  id  bigint GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
+  day date NOT NULL UNIQUE
+);
+
+CREATE TABLE yore.day_file (
+  id            bigint GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
+  day_id        bigint REFERENCES yore.day_index(id),
+  relative_path text NOT NULL
+);
+
+-- migrate:down
+DROP TABLE yore.day_file;
+DROP TABLE yore.day_index;
diff --git a/db/schema.sql b/db/schema.sql
new file mode 100644
index 0000000..d434642
--- /dev/null
+++ b/db/schema.sql
@@ -0,0 +1,133 @@
+SET statement_timeout = 0;
+SET lock_timeout = 0;
+SET idle_in_transaction_session_timeout = 0;
+SET transaction_timeout = 0;
+SET client_encoding = 'UTF8';
+SET standard_conforming_strings = on;
+SELECT pg_catalog.set_config('search_path', '', false);
+SET check_function_bodies = false;
+SET xmloption = content;
+SET client_min_messages = warning;
+SET row_security = off;
+
+--
+-- Name: yore; Type: SCHEMA; Schema: -; Owner: -
+--
+
+CREATE SCHEMA yore;
+
+
+SET default_tablespace = '';
+
+SET default_table_access_method = heap;
+
+--
+-- Name: schema_migrations; Type: TABLE; Schema: public; Owner: -
+--
+
+CREATE TABLE public.schema_migrations (
+    version character varying NOT NULL
+);
+
+
+--
+-- Name: day_file; Type: TABLE; Schema: yore; Owner: -
+--
+
+CREATE TABLE yore.day_file (
+    id bigint NOT NULL,
+    day_id bigint,
+    relative_path text NOT NULL
+);
+
+
+--
+-- Name: day_file_id_seq; Type: SEQUENCE; Schema: yore; Owner: -
+--
+
+ALTER TABLE yore.day_file ALTER COLUMN id ADD GENERATED ALWAYS AS IDENTITY (
+    SEQUENCE NAME yore.day_file_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1
+);
+
+
+--
+-- Name: day_index; Type: TABLE; Schema: yore; Owner: -
+--
+
+CREATE TABLE yore.day_index (
+    id bigint NOT NULL,
+    day date NOT NULL
+);
+
+
+--
+-- Name: day_index_id_seq; Type: SEQUENCE; Schema: yore; Owner: -
+--
+
+ALTER TABLE yore.day_index ALTER COLUMN id ADD GENERATED ALWAYS AS IDENTITY (
+    SEQUENCE NAME yore.day_index_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1
+);
+
+
+--
+-- Name: schema_migrations schema_migrations_pkey; Type: CONSTRAINT; Schema: public; Owner: -
+--
+
+ALTER TABLE ONLY public.schema_migrations
+    ADD CONSTRAINT schema_migrations_pkey PRIMARY KEY (version);
+
+
+--
+-- Name: day_file day_file_pkey; Type: CONSTRAINT; Schema: yore; Owner: -
+--
+
+ALTER TABLE ONLY yore.day_file
+    ADD CONSTRAINT day_file_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: day_index day_index_day_key; Type: CONSTRAINT; Schema: yore; Owner: -
+--
+
+ALTER TABLE ONLY yore.day_index
+    ADD CONSTRAINT day_index_day_key UNIQUE (day);
+
+
+--
+-- Name: day_index day_index_pkey; Type: CONSTRAINT; Schema: yore; Owner: -
+--
+
+ALTER TABLE ONLY yore.day_index
+    ADD CONSTRAINT day_index_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: day_file day_file_day_id_fkey; Type: FK CONSTRAINT; Schema: yore; Owner: -
+--
+
+ALTER TABLE ONLY yore.day_file
+    ADD CONSTRAINT day_file_day_id_fkey FOREIGN KEY (day_id) REFERENCES yore.day_index(id);
+
+
+--
+-- PostgreSQL database dump complete
+--
+
+
+--
+-- Dbmate schema migrations
+--
+
+INSERT INTO public.schema_migrations (version) VALUES
+    ('20250728054639'),
+    ('20250728060412');
diff --git a/flake.lock b/flake.lock
index 595b378..1284f87 100644
--- a/flake.lock
+++ b/flake.lock
@@ -64,11 +64,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1752972533,
-        "narHash": "sha256-jhVfZK05aRtQ6FqLfLrhpGk8bRAkpXXXxVx4DhJgQVY=",
+        "lastModified": 1753685821,
+        "narHash": "sha256-X6YaJuZHcZKCytmMnTj2lLPGGwhypU6YPfUdbGB/px4=",
         "ref": "main",
-        "rev": "b39da29d139763f41bffcc8c4c175e472d672f45",
-        "revCount": 61,
+        "rev": "9e9e0204bb4c84915c2133d6fc9d9028a24b0e81",
+        "revCount": 62,
         "type": "git",
         "url": "https://git.pbrinkmeier.de/paul/opium"
       },
diff --git a/flake.nix b/flake.nix
index 8b97196..c0b6c3a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -74,6 +74,7 @@
                 pkgs.haskellPackages.implicit-hie
                 pkgs.haskell-language-server
                 pkgs.postgresql
+                pkgs.dbmate
               ];
             overrides = addOpium;
           }).env;