Kryva.fr (https://Kryva.fr) — B2B SaaS for French construction trades. Shipped solo in 4 months: ...Kryva.fr (https://Kryva.fr) — B2B SaaS for French construction trades. Shipped solo in 4 months: ...
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Sacha Praljak
• May 16
Kryva.fr — B2B SaaS for French construction trades. Shipped solo in 4 months: Claude tool-use agent (40+ tools, human-in-the-loop, streaming), Vapi outbound voice agent (50+ calls/day, EU AI Act compliant), Stripe Connect Express marketplace (auto monthly payouts, KYC programmatic), Apollo pipeline (50k+ leads enriched), multi-modal auth (passkeys WebAuthn + Google SSO PKCE + magic links + OTP), GDPR + EU AI Act compliance.
Stack: Next.js 16 RSC + Server Actions, Supabase RLS multi-tenant, Vercel Edge runtime + cron jobs, Sentry observability with PII scrubbing, Resend, 6-language i18n, multi-country EU architecture (FR/BE/LU/CH/DE/AT/NL/IT/ES).
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