Two-sided platforms connecting buyers and sellers, service providers and clients, or employers and talent — including job boards and recruitment tools.
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Hireloop is a self-hostable, production-grade job board built on Next.js 15 (App Router), Postgres 16, and Drizzle ORM. Candidates browse, filter, and bookmark roles; employers create a free account, post a job, and manage their listings from any device; admins moderate the board. The auth layer uses bcryptjs work-factor-12 password hashes and opaque session tokens (raw bytes in an HttpOnly cookie, only sha256(token) stored server-side) with a 30-day sliding expiry. Email verification and password reset use atomic UPDATE ... RETURNING tokens so replay is impossible, with Resend in production and Mailpit/SMTP in dev/CI. Self-serve account deletion soft-deletes the user, scrubs PII, and closes every owned posting (GDPR-aligned). Every /api/auth/* and /api/me/* endpoint sits behind in-memory rate limits and is wrapped in a top-level handler that emits structured JSON logs (request id, route, method, ip, status, ms) and returns a sanitised 500 so Drizzle internals never leak through. Security headers (HSTS, CSP, X-Frame-Options: DENY, X-Content-Type-Options, Referrer-Policy, Permissions-Policy) are set in next.config.ts and apply to every route. /api/health and /api/ready expose liveness + readiness probes for any load balancer or orchestrator. Sentry integration is one env var (SENTRY_DSN) away; the SDK is dynamically imported so a deploy without it pays zero cost. Tests: 80 unit (Vitest), integration suite against an ephemeral Postgres (testcontainers), and Playwright E2E that round-trips the verify-email and password-reset flows through Mailpit in CI. SEO: per-listing schema.org JobPosting JSON-LD (Google for Jobs ready), canonical URLs, OG image, sitemap, robots disallow on every gated route, and a bundle-size budget enforced in CI. Ideal for indie founders launching a niche job board, agencies building white-label boards for clients, internal hiring portals at companies that want first-party data, and developers learning a modern Next.js + Postgres + auth-from-scratch stack.
by Sam Houz

MVP ForSale (mvp.forsale) is a server-rendered promotional listing storefront for an MVP Hub-style marketplace, built on Next.js 16 (App Router) and React 19 with plain JavaScript and zero UI-framework dependencies. It is a read-only catalog frontend: every page fetches the marketplace catalog server-side from MVP Hub's public API, so crawlers and link previews receive full HTML, and every buy action deep-links back to the marketplace with UTM attribution. SEO is the core feature set — per-listing metadata and Open Graph tags, schema.org Product JSON-LD with offer price and aggregate rating, canonical URLs, a live sitemap.xml generated from the catalog, robots.txt, and noindexed search results. The catalog UX covers category landing pages with data-derived subcategory chips, faceted search (category, tech stack, capability, price slider), client-side sort, listing detail pages with gallery, seller-provided markdown body (rendered with raw HTML stripped), readiness badges, verified-review counts, and multi-variant "from" price ranges. Data-integrity guards are built in: reviews are never fabricated, unpriced listings never show $0, demo buttons only render for real demo links, and sold-out or coming-soon sale statuses are respected. The visual theme is a distinctive hand-drawn wireframe aesthetic (Kalam handwriting font, sketch-style browser chrome) that is deliberately easy to re-skin: one CSS file, design tokens at the top. Easy to set up — clone, set three env vars (API origin, public marketplace origin, canonical site origin), pnpm install, pnpm dev; ships with a BuildKit-secret Dockerfile producing a Next.js standalone image with a liveness health route for blue/green deploys. Pluggable against any backend exposing the /api/mvps list + detail contract. Ideal for marketplace operators who want a second themed storefront or SEO promo surface for the same catalog, agencies white-labelling listing sites, and developers who want a clean reference for server-rendered catalog SEO on the App Router.
by Sam Houz
Marketplaces are two-sided platforms that connect buyers with sellers, clients with service providers, or employers with talent. The best marketplace MVPs focus on a specific niche, solve clear pain points for both sides, and build trust through payments, reviews, and quality control.
Job boards and applicant tracking systems are marketplaces with an unusual constraint: the "inventory" is people, and both sides carry legal obligations.
Niche job boards consistently outperform general ones — specialised features, domain credibility, and a targeted candidate pool beat raw reach at small scale.
Tip: Successful marketplaces solve a specific problem better than existing solutions, start with manual processes to validate demand, then automate and scale gradually.
Focus on one specific niche, solve a clear pain point for both sides, ensure quality supply, and build trust through reviews, payments, and dispute resolution.
Generally supply first—you need providers/sellers before buyers have a reason to visit. Use manual curation and incentives to bootstrap the initial supply side.
Commission fees (5-20% per transaction), listing fees, subscription plans for sellers, premium features, or advertising revenue from promoted listings.
Buyers won't come without sellers, sellers won't join without buyers. Solve by starting hyper-local/niche, manual curation, or providing value to one side independently.
Implement verification systems, review/rating mechanisms, secure payments with escrow, clear policies, and responsive dispute resolution processes.
Job boards focus on job discovery and application submission for candidates. ATS systems help employers manage the hiring process, track applicants, and streamline recruitment workflows. Many platforms combine both.
Freelance platforms focus on project-based work with bidding, escrow payments, milestone tracking, and delivery management. Job boards target permanent employment with a different application and hiring flow.
Job posting, application, and hiring pipeline flows.
Recruitment funnels, applicant tracking, and talent tools.
Bid, escrow, delivery.
Hire freelancers, full-time roles, micro-gigs.
Physical or digital goods with listings and checkout.
Spaces, equipment, vehicles, tools.
Book services, experts, or agencies.
Promo and storefront sites for marketplace listings.
End-to-end marketplace platforms with buyer and seller flows.