A one-time, free setup so your remote team shares one live board. About 10 minutes; only the admin does it, then everyone signs in.

1. Go to supabase.com → create a free account → New project.
2. Open SQL Editor, paste the script below and click Run.
3. Open Project Settings → API. Copy the Project URL and anon public key into the boxes below.
4. (Recommended) In Authentication → Providers → Email, turn off "Confirm email".

create table if not exists projects (
  id text primary key,
  data jsonb not null,
  updated_at timestamptz default now()
);
create table if not exists team_members (
  name text primary key
);
create table if not exists settings (
  key text primary key,
  value text
);
alter table projects enable row level security;
alter table team_members enable row level security;
alter table settings enable row level security;
create policy "team rw" on projects for all to authenticated using (true) with check (true);
create policy "team rw" on team_members for all to authenticated using (true) with check (true);
create policy "team rw" on settings for all to authenticated using (true) with check (true);