Ra mắt Multi-language SaaS Starter v3.4 — 60+ route, 339 test, 11 RLS migration

Last month I pushed v3.4 "Premium Polish" of Multi-language SaaS Starter - and this release adds 50+ new routes on top of v3.3. Total shipped routes in the template: 60+. Before reading further: live demo at starter.kpboards.com.

This is an update post because too many SaaS templates leave you to build:

Notification bell + activity feed
⌘K command palette
Integrations catalog + webhooks
Onboarding flow (welcome + setup checklist)
Feature-request voting board
RSS feeds (site + blog + changelog)
Print stylesheet for invoices/blog

v3.4 ships all of it. That's the differentiator worth highlighting.

What's in v3.4

I named v3.4 "Premium Polish" because the theme is turning the template from "complete SaaS surface" into "ready-to-photograph for the launch deck". Twelve phases, ~50 new routes layered on v3.3.

1. Landing personalisation - 5 hero variants

One config knob in LANDING.heroVariant:

bento - feature grid (default)
split-video - copy left, demo video right
minimal - single H1 + CTA
conversion - testimonial-first
product-shot - dashboard screenshot

Plus 3 optional strips: <LandingLogos />, <LandingStats />, <LandingComparison />. A/B test variants without touching code.

2. Trust + comparison + vertical SEO

The surface every enterprise pitch needs that templates skip:

/trust, /security, /status (footer pill: green/yellow/red)
/vs + per-competitor pages - comparisons against ShipFast / Makerkit / Achromatic
/use-cases + per-vertical pages
/alternatives/[slug]

All static, generated at build, indexable. Long-tail SEO surface for ranking on "ShipFast alternative" or "SaaS template for fintech".

3. Resources hub + 3 free tools

/resources + 3 SEO-magnet tools: slug-generator, contrast-checker, UUID generator. Pull organic search traffic without paid acquisition.

4. Sales-led path

Four lead-gen forms: /demo, /contact-sales, /quote, /onboarding-call. Each form persists ContactMessage.tag so the admin inbox filters by funnel.

5. Company surface

/careers + [id], /press, /partners, /brand, /manifesto. Solo founders get a "company page" without hiring a designer.

6. App polish - notifications + activity + integrations + webhooks

<NotificationBell /> topbar dropdown with 60s poll
/app/notifications with mark-all-read
/app/activity reads from audit log
/app/integrations 9-entry typed catalog + /app/integrations/[slug]
/app/webhooks with signed secrets shown once

7. App polish - power features

⌘K <GlobalSearch /> command palette (cmdk)
<KeyboardShortcutsDialog /> (?)
/app/exports async export center
/app/templates 8-entry typed gallery
<BulkActionBar /> + <SavedViews /> adopted in /app/tasks

8. Onboarding

/welcome first-signup intro, <SetupChecklist /> dashboard widget tracking 5 steps + Profile.onboarding jsonb backing it.

9. Visual polish library

<EmptyState /> + 5 inline-SVG illustrations, <CardSkeleton /> / <TableSkeleton /> / <DetailSkeleton /> / <ListSkeleton />, <AnimatedCounter />, useConfetti(), <PageTransition />, useScrollReveal().

10. Community + feedback

/feature-requests voting board, /feature-requests/new, /showcase, floating <FeedbackButton /> on every authed page.

11. Content depth + RSS

/newsletter archive + /newsletter/[issue]
/podcast
/events + [id] with RSVP / replay
3 RSS feeds (/feed.xml, /blog/feed.xml, /changelog/feed.xml)

12. Document polish

Print stylesheet covering blog + docs + invoices + admin lists, /admin/exports admin-side export center.

Six new Prisma models (Notification, IntegrationConnection, Webhook, ExportRequest, FeatureRequest, FeatureRequestVote) plus the Profile.onboarding jsonb column. RLS owner-scoped on every new user-facing table; admin-gated where appropriate. RLS_EXPECTATIONS now lists 16 tables; all asserted in bun run verify:rls.

Why indie devs buy this instead of building it

Three real reasons:

1. 10 locales pre-wired (EN/VN/ES/FR/JA/KO/ZH/AR + RTL/ID/TH)

Most popular SaaS templates (ShipFast, Makerkit, Achromatic) ship 1-2 locales. Expanding is your problem. This template ships 10 working locales, each with:

Type-safe keys - TypeScript fails the build if a key is missing in any locale
Auto-detect by browser locale + timezone
hreflang alternates auto-generated
Multi-locale sitemap
Arabic ships with RTL as the worked example

Adding a new locale (de.ts, pt.ts): drop the file in src/locales/, register one line in template.config.ts, done. i18next + hreflang + sitemap pick it up.

2. Two parallel stacks - flip 2 env vars, no code change

Default: Supabase Auth + Supabase Postgres. Set AUTH_PROVIDER=nextauth + DB_PROVIDER=neon → Auth.js v5 + Neon. Same API surface (requireUser, requireAdmin), same admin panel, no code changes.

Many teams don't want Supabase lock-in. Switching stacks usually costs 1-2 weeks of debugging. Here: 2 env vars.

3. Production RLS + verify:rls fails CI on drift

Other templates ship "auth wired up". This one ships full RLS:

11+ paired SQL migrations with explicit CREATE POLICY blocks for every table
on_auth_user_created trigger materializes the Profile row on signup
enforce_role_immutability trigger blocks role escalation via the user-facing PATCH
profiles_update_self_safe_columns policy blocks user-side billing tampering
bun run verify:rls asserts every table has RLS on + the expected policy - drift fails CI

That's the actual differentiator from "RLS-off, fix it later" templates.

Test pyramid + dev tooling

339 unit tests (Vitest, 40 files)
28 Playwright specs, deterministic - single worker, locale-pinned en-US, timezone UTC
knip dead-code audit, i18n parity validator (10 locales), bundle-size budget, Lighthouse, linkinator
husky + lint-staged + commitlint pre-commit gate
bun run verify = lint + type-check + knip + i18n + test + build

Stack

Next.js 16 (App Router, React Compiler, standalone output) · React 19 · TypeScript 5.9 strict · Tailwind 4 · shadcn/ui (Base UI) · TanStack Table v8 · recharts · cmdk · vaul · react-resizable-panels · papaparse · i18next + react-i18next · Supabase Auth · Prisma 7 + Postgres · Stripe · Resend · Zod · Vitest · Playwright

Pricing + license

Launch $149 for the first 1000 buyers (then $249)
Single-developer commercial - unlimited apps for self + direct clients, no source redistribution
6 months of free updates. After that, paid upgrade unlocks 12 more months
7-day no-questions refund - if bun install && bun dev doesn't boot on a fresh machine, email me and I refund within one business day

Who buys this, who doesn't

Buy if:

Indie dev shipping a SaaS - you don't want 2 months of plumbing before the first paying customer
Solo founder going multi-locale on day one - 10 pre-wired locales, multi-currency Stripe
Agency building white-label SaaS for clients - production RLS, audit log, branded admin shell

Skip if:

You already have a codebase and only need 1-2 features - copy-paste is cheaper
You're not deploying multi-locale - simpler templates (ShipFast) are a better fit
You only need a landing page - this is a full SaaS, overkill

Try it + buy

→ Live demo at starter.kpboards.com

Demo admin login: demo+admin@example.com / demo. Read-only - writes return 403, but the panel renders fully.

→ Buy launch $149 on Polar.sh

This is an update post because too many SaaS templates leave you to build:

Notification bell + activity feed
⌘K command palette
Integrations catalog + webhooks
Onboarding flow (welcome + setup checklist)
Feature-request voting board
RSS feeds (site + blog + changelog)
Print stylesheet for invoices/blog

v3.4 ships all of it. That's the differentiator worth highlighting.

What's in v3.4

I named v3.4 "Premium Polish" because the theme is turning the template from "complete SaaS surface" into "ready-to-photograph for the launch deck". Twelve phases, ~50 new routes layered on v3.3.