https://zeltyn.com/blog Notes on product, design and delivery across iGaming, Web3 and fintech. en https://zeltyn.com/blog/dutch-ksa-account-closure-ux-spec https://zeltyn.com/blog/dutch-ksa-account-closure-ux-spec Fri, 09 Oct 2026 00:00:00 GMT Dutch regulator KSA now requires one-path, no-pitch account closure – effectively a UX spec. What it bans, why US click-to-cancel died, and the exit checklist I'd ship. https://zeltyn.com/blog/base-app-coinbase-wallet-rename-product-naming https://zeltyn.com/blog/base-app-coinbase-wallet-rename-product-naming Wed, 30 Sep 2026 00:00:00 GMT Coinbase renamed Base App back to Coinbase Wallet after 14 months. What the reversal teaches crypto and fintech founders about naming products after the job, not the chain. https://zeltyn.com/blog/sportsbook-push-notification-ban-design-brief https://zeltyn.com/blog/sportsbook-push-notification-ban-design-brief Tue, 22 Sep 2026 00:00:00 GMT Colorado banned sportsbook push notifications, the UKGC now dictates what a "deposit limit" may be called and how prominent it must be, and Massachusetts requires a specific reason in every limit notice. Regulators are writing UI specs – here's how to design a betting product that treats them as the brief. https://zeltyn.com/blog/premier-league-gambling-shirt-ban-100-sq-cm-test https://zeltyn.com/blog/premier-league-gambling-shirt-ban-100-sq-cm-test Tue, 22 Sep 2026 00:00:00 GMT No bookmaker is on the front of a Premier League shirt this season. Under the FA's kit rules the sleeve they retreated to is 100 sq cm, not 250 – and fintech and a stablecoin took the chest. What that does to an iGaming brand system. https://zeltyn.com/blog/mica-339-crypto-firms-build-like-one https://zeltyn.com/blog/mica-339-crypto-firms-build-like-one Fri, 11 Sep 2026 00:00:00 GMT The EU's MiCA transition ended grandfathering on July 1, 2026 and left 339 live authorizations across 26 countries. What that shortlist means for founders, and why your navigation is now a compliance surface. https://zeltyn.com/blog/telegram-mini-apps-apple-age-gate https://zeltyn.com/blog/telegram-mini-apps-apple-age-gate Mon, 31 Aug 2026 00:00:00 GMT Apple's Guideline 4.7 makes the host app responsible for every mini app inside it, and new state age-assurance laws now push a user's age category down from the app store into your product. Here's what that changes in a Telegram mini app's first three screens. https://zeltyn.com/blog/seed-funding-collapse-build-before-you-raise https://zeltyn.com/blog/seed-funding-collapse-build-before-you-raise Thu, 13 Aug 2026 00:00:00 GMT Crypto closed just 81 seed deals in H1 2026, down 88% from 2022, while fintech wrote bigger checks to a quarter fewer companies. What that reordering actually means if you're founding something in iGaming, Web3 or fintech. https://zeltyn.com/blog/why-ai-checkout-converts-worse https://zeltyn.com/blog/why-ai-checkout-converts-worse Mon, 27 Jul 2026 00:00:00 GMT In-chat AI checkout stalled in 2026 – Walmart measured it converting about three times worse than its own site. The payment rails are fine; what broke is the design of the moment money moves. https://zeltyn.com/blog/sweepstakes-casino-creative-two-coin-problem https://zeltyn.com/blog/sweepstakes-casino-creative-two-coin-problem Mon, 20 Jul 2026 00:00:00 GMT We designed a US sweepstakes casino, then found no standard for how the category should look. What I learned building the Sweeps style for Aduarius. https://zeltyn.com/blog/designing-a-brazil-style-for-igaming-ad-creative https://zeltyn.com/blog/designing-a-brazil-style-for-igaming-ad-creative Thu, 09 Jul 2026 00:00:00 GMT Brazil's regulated betting market hit ~US$7B in its first year. Here's why I built a dedicated Brazil visual style into Aduarius – reading a market as product. https://zeltyn.com/blog/building-aduarius-ai-ad-creative-tool https://zeltyn.com/blog/building-aduarius-ai-ad-creative-tool Fri, 03 Jul 2026 00:00:00 GMT I've briefed thousands of ad banners across iGaming and Web3, so I built Aduarius – an AI tool that turns a brief into on-brand creative in 8 seconds. https://zeltyn.com/blog/prediction-markets-built-like-brokerages https://zeltyn.com/blog/prediction-markets-built-like-brokerages Tue, 30 Jun 2026 00:00:00 GMT Kalshi is pulling ahead of Polymarket partly because it onboards like a brokerage, not a crypto app. A product breakdown of why the deposit screen, not the odds, is the moat in prediction markets right now. https://zeltyn.com/blog/sweepstakes-casino-crackdown-2026 https://zeltyn.com/blog/sweepstakes-casino-crackdown-2026 Tue, 30 Jun 2026 00:00:00 GMT The 2026 US crackdown on sweepstakes casinos doesn't just target operators – it names the payment processors, geolocation providers and designers who build them. I've shipped one of these platforms; here's what's changing and how to design for what's next. https://zeltyn.com/blog/brief-to-shipped-igaming-build https://zeltyn.com/blog/brief-to-shipped-igaming-build Sat, 27 Jun 2026 00:00:00 GMT The way I take a high-stakes iGaming or Web3 product from a one-line brief to a launched, on-brand product – and where most builds quietly go wrong. https://zeltyn.com/blog/designing-trust-web3-fintech https://zeltyn.com/blog/designing-trust-web3-fintech Sat, 20 Jun 2026 00:00:00 GMT In regulated, money-moving products, trust is a design material. Here's how I build it into Web3 and fintech UI – from the first screen to the moment money moves.