ouim — independent software studio

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Where the studio's focus is right now.

Betajot.ouim.me

Jot

A calm markdown notes app with tabs and a searchable sidebar. Connect any AI over MCP and it can read, write and find your notes too.

Open Jot

jWeekly reviewBilling database decisionReading list

Today

Billing database decision AI10:41 Postgres over Mongo for billi…

Pricing teardown8:30 Three tiers feels right, but the…

Reading listTue Designing Data-Intensive Appli…

Onboarding interviewsMon Five calls, same friction on st…

Billing database decision

Edited 10:41acme-apidecisionSaved by Claude

We chose Postgres over Mongo for billing. We need transactions and relational reporting.

Follow-ups

Pick a migration tool

Set up a read replica

Document the schema

Early previewlatchkey.ouim.me

Latchkey

Google and GitHub sign-in without the OAuth console. Your app’s origin is its client ID: no client secret, no per-app setup.

Try the live demonpm install latchkey-auth

server.ts, ExpressThe whole integration

import { createLatchkeyBackend } from "latchkey-auth";

const latchkey = createLatchkeyBackend({
  issuer: "https://latchkey.ouim.me",
  redirectUri: "https://notes.example/auth/callback",
});

app.get("/login", (req, res) => {
  const { authorizationUrl, transaction } =
    latchkey.beginAuthorization({ provider: "google" });
  req.session.latchkey = transaction;
  res.redirect(authorizationUrl.href);
});