Developer Builds Hyperlocal Job Platform for Brazilian Coastal District Using Clean Architecture

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A solo developer is building LIA, a hyperlocal employability platform designed for an isolated coastal district in Brazil, matching users to nearby retail jobs and gigs by proximity rather than through national job boards. The project's backend follows Clean Architecture principles, organizing code into four strict layers where outer layers depend on inner ones, never the reverse. The registration flow uses Argon2id for password hashing and a domain-driven design that keeps business logic free of framework or ORM dependencies. A shared error class bridges business rule violations and HTTP responses without leaking HTTP concerns into the domain layer. The developer notes that enforcing this structure from the very first endpoint on a solo project makes architectural discipline measurable rather than aspirational, with Part 2 set to cover the frontend registration flow.

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