lemma

A federated alternative to Facebook Marketplace.

Deployment (Work In Progress)

First, clone the repository

git clone https://github.com/letlovewin/lemma.git
cd lemma

Next, install all dependencies

npm install

Next, you have to set up a Supabase account, and create a new project. From here, you should have a SUPABASE_URL, a SUPABASE_KEY, and a SERVICE_ROLE_KEY. If you don't see SERVICE_ROLE_KEY, go to your project settings -> API, and copy the service_role field.

You have to set up your Supabase database as well. First, run

create table public.profiles (
  id uuid not null references auth.users on delete cascade,
  display_name text,
  bio text,

  primary key (id)
);

alter table public.profiles enable row level security;

in the SQL editor. After that's finished, run

-- inserts a row into public.profiles
create function public.handle_new_user()
returns trigger
language plpgsql
security definer set search_path = ''
as $$
begin
  insert into public.profiles (id, display_name, bio)
  values (new.id, new.raw_user_meta_data ->> 'display_name', new.raw_app_meta_data ->> 'bio');
  return new;
end;
$$;

-- trigger the function every time a user is created
create trigger on_auth_user_created
  after insert on auth.users
  for each row execute procedure public.handle_new_user();

Now, back to our lemma/ directory. Create a .env.local file, and populate it with your SUPABASE_URL and SUPABASE_KEY:

touch .env.local
echo VITE_SUPABASE_URL="your SUPABASE_URL here" >> .env.local
echo VITE_SUPABASE_KEY="your SUPABASE_KEY here" >> .env.local
echo SERVICE_ROLE_KEY="your SERVICE_ROLE_KEY here" >> .env.local

From here, there are two options: hosting the website using your own machinery, or deploying the website using Vercel. I'll give a tutorial for both.

Vercel

Create an account on Vercel. Then go back to your lemma/ directory, and run

npm install vercel-cli
vercel login

and follow the prompt.

Next, create a new Vercel project, and name it however you want. Create two new environment variables in the project.

VITE_SUPABASE_URL should be your actual Supabase URL. VITE_SUPABASE_KEY should be your actual Supabase key. SERVICE_ROLE_KEY should be your service_role key.

Now that that's finished, run

vercel link

and follow the instructions to link lemma/ to your project on Vercel.

After you've finished that, run

vercel deploy

to deploy your instance.

NOTE: This is NOT complete. I am writing this tutorial alongside whatever development I'm doing. At this point, this is what you have to do if you want to host a clone of this website, sans the ability to post, interact with other users, or even be connected to the Fediverse. Once I implement those features in this repo, I'll add more instructions for that.