KSeF 2.0 Authentication for Developers: 2026 Guide
Implement KSeF 2.0 authentication with certificates, XAdES, access and refresh tokens, least-privilege permissions, and a safe 2027 migration plan.
Notes on hiring, security, and how we build Kit.
Implement KSeF 2.0 authentication with certificates, XAdES, access and refresh tokens, least-privilege permissions, and a safe 2027 migration plan.
Compare Canadian job-posting requirements in Ontario, British Columbia, PEI, and Newfoundland and Labrador, with a practical 2026 checklist.
Ontario employers using AI to screen, assess, or select applicants must disclose it in public job postings. See who is covered and what to say.
Learn how to map invoice data into FA(3), validate KSeF XML locally, avoid identity-field traps, and promote safely from TEST to production.
Ghost-job laws make hiring intent a recordable commitment. Learn what is law, what is pending, and the six controls every startup should run.
The Mechanical Turk shutdown is your deadline to protect sensitive data, classify review work, and build a calibrated human-in-the-loop team.
A technical hire costs ~21 interviewer-hours under 25 people and ~29 by 300. Interviewer capacity planning is how scale-ups stop the bench capping hiring.
Z.ai's ledger holds 2,436 findings across 269 projects, and 2,239 have not reached a maintainer. How to rebuild VDP intake for the bulk reporter.
We probed the 80 newest Launch YC companies: 25% had a careers page at the obvious URL, 11% a security.txt, and 6 of those 9 went to a founder inbox.
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