Source-owned Next.js SaaS codebase

Ship your SaaS, not your shame.

Auth, organizations, RBAC, Stripe billing, CMS, media, i18n, feature flags, admin screens, and MCP operations already wired. You own the codebase. You ship the product.

One-time accessNo hosted lock-inBuilt for founder-devs
mcp-control-plane
Auth + orgsAccounts, sessions, organizations, passkeys, and security flows.
RBACScoped groups, roles, policies, and server-side permission checks.
BillingStripe-oriented paid access, customers, payment, and billing operations.
CMS + MCPPages, media, global data, publication, and trusted control-plane tools.
The boring stuff, wired as a system

Not a pile of starter snippets. A connected SaaS spine.

The design goal is simple: make every operational surface talk to the others before your product logic arrives.

IdentityBetter Auth, organizations, sessions, passkeys, and account security.
AuthorizationRBAC resources, scoped bindings, roles, policies, and explainable checks.
MoneyStripe-oriented access flows, customers, products, and billing state.
MCPCMS · Stripe · Admin · Media
ContentCMS pages, generated sections, global data, media, thumbnails, and quotas.
OperationsAdmin dashboards, feature flags, analytics, health surfaces, and MCP tools.
LocalizationEnglish/French foundations for product, marketing, and operational UI.
Talk to my SaaS

Your site, catalog, pages, media, and offers are operable through MCP.

That is the difference between a starter and an operating system: trusted agents can inspect, draft, validate, diff, and publish with audit trails.

mcp-control-plane.run
$list pages and publication state
$draft updated sales sections
$validate localized content
$diff latest draft against production
$publish only after approval
ready_

Draft-first

Content changes land as validated revisions before production moves.

Audited

Every write carries actor, reason, target, and revision context.

Operational

Pages, CMS data, media, design tokens, and billing catalog live behind tools.

Open-source proof, not decoration

Your admin tables are quietly eating the roadmap.

Sorting, grouping, global search, typed filters, calculations, column state, URL state and i18n are not checkbox features. They become product infrastructure. YaYaw Table is the open-source proof: serious table UX, owned in your codebase.

TanStack + ShadcnURL stateTyped filtersi18nOwned code
mcp-control-plane
State that survivesShare filters, sort, groups, pages and visible columns through the URL.
Typed behaviorDates, amounts, enums, relations and localized text get the right controls.
Calculations built inTotals, derived badges and row signals become system patterns, not one-off glue.
Reusable admin UXOne table system for the boring dashboards every SaaS keeps rebuilding.
One payment. Source code. No black box.

Own the foundation. Build the business.

One-time codebase access. No subscription-first bait. Just the source-owned SaaS engine you can inspect, extend, and make yours.

YYayaw

Source-owned SaaS codebase access. Auth, RBAC, billing, CMS, i18n, media, feature flags, admin, and MCP foundations without the boilerplate treadmill.

© 2026 Yayaw. All rights reserved.