diff --git a/migrations/2025-01-19-212212_issues-to-tasks/down.sql b/migrations/2025-01-19-212212_issues-to-tasks/down.sql
new file mode 100644
index 0000000..2c4803c
--- /dev/null
+++ b/migrations/2025-01-19-212212_issues-to-tasks/down.sql
@@ -0,0 +1,7 @@
+DELETE FROM tasks
+WHERE type = 'dev'
+  AND id IN (SELECT id FROM issues);
+
+DELETE FROM users_projects_roles
+WHERE role_id = 2
+  AND user_id IN (SELECT DISTINCT assignee_id FROM issues WHERE assignee_id IS NOT NULL);
diff --git a/migrations/2025-01-19-212212_issues-to-tasks/up.sql b/migrations/2025-01-19-212212_issues-to-tasks/up.sql
new file mode 100644
index 0000000..e892177
--- /dev/null
+++ b/migrations/2025-01-19-212212_issues-to-tasks/up.sql
@@ -0,0 +1,60 @@
+-- Migrate issues to tasks
+
+INSERT INTO tasks (
+    id,
+    number,
+    repository_id,
+    title,
+    description,
+    labels,
+    open,
+    is_certified,
+    assignee_user_id,
+    issue_created_at,
+    issue_closed_at,
+    created_at,
+    updated_at,
+    type,
+    status,
+    url
+)
+SELECT
+    i.id,
+    i.number,
+    i.repository_id,
+    i.title,
+    i.description,
+    i.labels,
+    i.open,
+    COALESCE(i.certified, false) AS is_certified,
+    i.assignee_id AS assignee_user_id,
+    i.issue_created_at,
+    i.issue_closed_at,
+    i.created_at,
+    i.updated_at,
+    'dev' AS type,
+    CASE 
+        WHEN i.open = TRUE AND i.assignee_id IS NULL THEN 'open'
+        WHEN i.open = TRUE AND i.assignee_id IS NOT NULL THEN 'in-progress'
+        WHEN i.open = FALSE THEN 'completed'
+    END AS status,
+    CONCAT(
+        'https://github.com/',
+        r.slug,
+        '/issues/',
+        i.number
+    ) AS url
+FROM 
+    issues i
+JOIN 
+    repositories r 
+ON 
+    i.repository_id = r.id;
+
+-- add CONTRIBUTOR role
+
+INSERT INTO users_projects_roles (user_id, role_id)
+SELECT DISTINCT assignee_id AS user_id, 2 AS role_id
+FROM issues
+WHERE assignee_id IS NOT NULL
+ON CONFLICT (user_id, project_id, role_id) DO NOTHING;
diff --git a/migrations/2025-01-19-215731_contributor-role/down.sql b/migrations/2025-01-19-215731_contributor-role/down.sql
new file mode 100644
index 0000000..dd524fe
--- /dev/null
+++ b/migrations/2025-01-19-215731_contributor-role/down.sql
@@ -0,0 +1,2 @@
+DROP TRIGGER IF EXISTS trigger_assign_role_to_user ON tasks;
+DROP FUNCTION IF EXISTS assign_role_to_user;
diff --git a/migrations/2025-01-19-215731_contributor-role/up.sql b/migrations/2025-01-19-215731_contributor-role/up.sql
new file mode 100644
index 0000000..c0bab5a
--- /dev/null
+++ b/migrations/2025-01-19-215731_contributor-role/up.sql
@@ -0,0 +1,21 @@
+CREATE OR REPLACE FUNCTION assign_role_to_user()
+RETURNS TRIGGER AS $$
+BEGIN
+  IF NEW.assignee_user_id IS NOT NULL THEN
+    INSERT INTO users_projects_roles (user_id, role_id)
+    SELECT NEW.assignee_user_id, 2
+    WHERE NOT EXISTS (
+      SELECT 1
+      FROM users_projects_roles
+      WHERE user_id = NEW.assignee_user_id
+        AND role_id = 2
+    );
+  END IF;
+  RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER trigger_assign_role_to_user
+AFTER INSERT OR UPDATE OF assignee_user_id ON tasks
+FOR EACH ROW
+EXECUTE FUNCTION assign_role_to_user();
diff --git a/migrations/2025-01-19-223138_tasks-status/down.sql b/migrations/2025-01-19-223138_tasks-status/down.sql
new file mode 100644
index 0000000..61a86fe
--- /dev/null
+++ b/migrations/2025-01-19-223138_tasks-status/down.sql
@@ -0,0 +1,2 @@
+DROP TRIGGER IF EXISTS update_task_status_trigger ON tasks;
+DROP FUNCTION IF EXISTS update_task_status;
\ No newline at end of file
diff --git a/migrations/2025-01-19-223138_tasks-status/up.sql b/migrations/2025-01-19-223138_tasks-status/up.sql
new file mode 100644
index 0000000..6393bd4
--- /dev/null
+++ b/migrations/2025-01-19-223138_tasks-status/up.sql
@@ -0,0 +1,16 @@
+
+CREATE OR REPLACE FUNCTION update_task_status() RETURNS TRIGGER AS $$
+BEGIN
+    NEW.status := CASE 
+        WHEN NEW.open = TRUE AND NEW.assignee_user_id IS NULL THEN 'open'
+        WHEN NEW.open = TRUE AND NEW.assignee_user_id IS NOT NULL THEN 'in-progress'
+        WHEN NEW.open = FALSE THEN 'completed'
+    END;
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER update_task_status_trigger
+BEFORE INSERT OR UPDATE ON tasks
+FOR EACH ROW
+EXECUTE FUNCTION update_task_status();
\ No newline at end of file
diff --git a/migrations/2025-01-27-234215_add_unique_constraint_to_tasks/down.sql b/migrations/2025-01-27-234215_add_unique_constraint_to_tasks/down.sql
new file mode 100644
index 0000000..7f14109
--- /dev/null
+++ b/migrations/2025-01-27-234215_add_unique_constraint_to_tasks/down.sql
@@ -0,0 +1,2 @@
+ALTER TABLE tasks
+DROP CONSTRAINT tasks_repo_number_unique;
diff --git a/migrations/2025-01-27-234215_add_unique_constraint_to_tasks/up.sql b/migrations/2025-01-27-234215_add_unique_constraint_to_tasks/up.sql
new file mode 100644
index 0000000..de54584
--- /dev/null
+++ b/migrations/2025-01-27-234215_add_unique_constraint_to_tasks/up.sql
@@ -0,0 +1,2 @@
+ALTER TABLE tasks
+ADD CONSTRAINT tasks_repo_number_unique UNIQUE (repository_id, number);
diff --git a/migrations/2025-01-29-212647_repository-id/down.sql b/migrations/2025-01-29-212647_repository-id/down.sql
new file mode 100644
index 0000000..a3b0aa8
--- /dev/null
+++ b/migrations/2025-01-29-212647_repository-id/down.sql
@@ -0,0 +1,3 @@
+
+ALTER TABLE tasks
+    DROP CONSTRAINT tasks_repository_id_fkey;
diff --git a/migrations/2025-01-29-212647_repository-id/up.sql b/migrations/2025-01-29-212647_repository-id/up.sql
new file mode 100644
index 0000000..f2d97f0
--- /dev/null
+++ b/migrations/2025-01-29-212647_repository-id/up.sql
@@ -0,0 +1,6 @@
+
+ALTER TABLE tasks
+    ADD CONSTRAINT tasks_repository_id_fkey
+    FOREIGN KEY (repository_id)
+    REFERENCES repositories(id)
+    ON DELETE CASCADE;
\ No newline at end of file
diff --git a/migrations/2025-01-29-212911_project-id/down.sql b/migrations/2025-01-29-212911_project-id/down.sql
new file mode 100644
index 0000000..dec2645
--- /dev/null
+++ b/migrations/2025-01-29-212911_project-id/down.sql
@@ -0,0 +1,8 @@
+
+DROP TRIGGER IF EXISTS trigger_set_project_id ON tasks;
+DROP FUNCTION IF EXISTS set_project_id_from_repository;
+ALTER TABLE tasks
+    DROP CONSTRAINT tasks_repository_id_fkey;
+
+ALTER TABLE repositories
+    DROP CONSTRAINT unique_id_project_id;
diff --git a/migrations/2025-01-29-212911_project-id/up.sql b/migrations/2025-01-29-212911_project-id/up.sql
new file mode 100644
index 0000000..52a14c0
--- /dev/null
+++ b/migrations/2025-01-29-212911_project-id/up.sql
@@ -0,0 +1,16 @@
+ALTER TABLE repositories
+    ADD CONSTRAINT unique_id_project_id UNIQUE (id, project_id);
+
+CREATE OR REPLACE FUNCTION set_project_id_from_repository()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.project_id := (SELECT project_id FROM repositories WHERE id = NEW.repository_id);
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER trigger_set_project_id
+BEFORE INSERT OR UPDATE ON tasks
+FOR EACH ROW
+WHEN (NEW.repository_id IS NOT NULL AND NEW.project_id IS NULL)
+EXECUTE FUNCTION set_project_id_from_repository();
\ No newline at end of file
diff --git a/src/schema.rs b/src/schema.rs
index c900f27..70ce5cf 100644
--- a/src/schema.rs
+++ b/src/schema.rs
@@ -28,6 +28,18 @@ diesel::table! {
     }
 }
 
+diesel::table! {
+    milestones (id) {
+        id -> Int4,
+        slug -> Text,
+        name -> Text,
+        url -> Nullable<Text>,
+        project_id -> Int4,
+        created_at -> Timestamptz,
+        updated_at -> Nullable<Timestamptz>,
+    }
+}
+
 diesel::table! {
     projects (id) {
         id -> Int4,
@@ -155,8 +167,10 @@ diesel::table! {
 
 diesel::joinable!(issues -> repositories (repository_id));
 diesel::joinable!(issues -> users (assignee_id));
+diesel::joinable!(milestones -> projects (project_id));
 diesel::joinable!(repositories -> projects (project_id));
 diesel::joinable!(tasks -> projects (project_id));
+diesel::joinable!(tasks -> repositories (repository_id));
 diesel::joinable!(tasks_votes -> tasks (task_id));
 diesel::joinable!(tasks_votes -> users (user_id));
 diesel::joinable!(team_memberships -> teams (team_id));
@@ -168,6 +182,7 @@ diesel::joinable!(users_projects_roles -> users (user_id));
 diesel::allow_tables_to_appear_in_same_query!(
     issues,
     languages,
+    milestones,
     projects,
     repositories,
     roles,