The latest articles on DEV Community by Artem Daliev (@artem_daliev). https://dev.to/artem_daliev https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4176779%2F98e88339-f3e3-4a4c-b326-47fdd97b1e4e.png https://dev.to/artem_daliev en Artem Daliev Sun, 11 Oct 2026 09:55:50 +0000 https://dev.to/artem_daliev/im-17-and-i-built-the-prep-site-for-the-exam-i-sit-in-june-1975 https://dev.to/artem_daliev/im-17-and-i-built-the-prep-site-for-the-exam-i-sit-in-june-1975 <p>I'm Artem, 17, a school student in Astana, Kazakhstan. In June 2027 I sit the ENT, the national university entrance exam. The score decides whether the state pays for your degree.</p> <p>The prep sites I tried drill you with tests. You get a question wrong, see the right letter and move on. I wanted something that would explain the topic I keep failing, so I built it: <a href="https://biik.kz" rel="noopener noreferrer">biik.kz</a>. First commit on 25 September 2026, public launch on 12 October.</p> <h2> What it does </h2> <ul> <li>A free diagnostic that shows how many points you are short of a state grant.</li> <li>A daily plan built from the task types you get wrong, following the official exam specification.</li> <li>227 short narrated video lessons. Every spoken word is on the screen.</li> <li>A mock exam in the ENT format every month.</li> <li>Mistakes come back on days 1, 3 and 7.</li> <li>An AI tutor that explains a wrong answer and can read a photo of a problem.</li> </ul> <h2> How it is built </h2> <ul> <li>Next.js on Cloudflare Workers. There is no database: accounts and progress are JSON files in R2.</li> <li>Answers are checked on the server, so the answer keys never reach the browser.</li> <li>A .kz domain may not point at hosting outside Kazakhstan, so there is a small proxy server in Almaty in front of Cloudflare.</li> <li>Payment is by Kaspi QR, the way people here pay for everything.</li> <li>I write the code with AI coding tools. The project has about 380 automated tests, and I add a test before I fix a bug, because otherwise I break the same thing twice.</li> </ul> <h2> Where it stands </h2> <p>One paying learner, from the closed test. Three free days, then 4 990 or 9 990 tenge a month (about 10 or 20 dollars). The interface is in Russian, a Kazakh version is in progress, and there is an English summary at <a href="https://biik.kz/about" rel="noopener noreferrer">biik.kz/about</a>. Sentry for Startups and PostHog for Startups accepted the project.</p> <p>Before this I ran ads for my mother's studio and built her a booking bot and a CRM.</p> <p>I use Biik for my own prep, so I will know in June whether it works. If you have built anything for exam prep, I would like to hear what kept students coming back after the first week.</p> showdev education nextjs cloudflare