# oContis Studio > Shopify Plus agency London. Custom app development, stack audits, checkout extensions, and Shopify Stack Recovery for established DTC brands.. Contact: hello@ocontis.studio | London, United Kingdom. Canonical site: https://ocontis.studio/ Agents should treat [sitemap.xml](https://ocontis.studio/sitemap.xml) as the source of truth for currently published URLs. ## Pages - [Home](https://ocontis.studio/): Shopify Plus agency London: custom app development, stack audits, merchant experience, and Shopify Stack Recovery for established DTC brands - [Services](https://ocontis.studio/services/): Shopify stack audit, custom app development, theme development, checkout extensions, merchant experience, replatforming, and Shopify Plus builds for UK and international brands - [Projects](https://ocontis.studio/projects/): Portfolio of Shopify theme, app, and growth work - [Blog](https://ocontis.studio/blog/): Shopify and ecommerce articles, guides, and case insights - [Contact](https://ocontis.studio/contact/): Book a Shopify stack assessment or discovery call for established DTC brands (stack audit, custom development, migration, partnership) ## Tools - [UCP Catalogue Explorer](https://ocontis.studio/tools/ucp-catalogue-explorer/): Search Shopify's Global Catalog through UCP. Browse live product listings in an infinite 3D canvas. Free reference app for agentic commerce discovery. - [Unit Economics Simulator](https://ocontis.studio/tools/unit-economics-simulator/): Free Shopify LTV CAC calculator for founders and growth leads. Model payback, churn, growth ceiling, and MRR/ARR before you raise paid acquisition. - [Shopify Migration Readiness Assessment](https://ocontis.studio/tools/migration-readiness-assessment/): Interactive readiness assessment for replatforming to Shopify. Score migration risk, estimate timeline, and download a personalised phase roadmap. ## Blog - [Shopify Canvas: How to Review Sidekick Theme Changes Before They Go Live](https://ocontis.studio/blog/post/shopify-canvas-how-to-review-sidekick-theme-changes-before-they-go-live/): Preview unpublished Shopify Canvas Sidekick edits after choosing the editor and checking app blocks. Then name who reverts after the Markets check. - [Shopify New Customer Accounts vs Classic: A Decision Framework](https://ocontis.studio/blog/post/shopify-new-customer-accounts-vs-classic-a-decision-framework/): Map each Shopify login path against New Customer Accounts. Choose native social, Shop, Plus identity, or classic, then list rebuilds before sunset. - [How to Fix Shopify Checkout Consent When Marketing Pixels Stay Denied](https://ocontis.studio/blog/post/how-to-fix-shopify-checkout-consent-when-marketing-pixels-stay-denied/): Shopify checkout custom pixels miss marketing consent after payment redirects. Confirm the Customer Privacy write, then repair the pixel handoff. - [Shopify Flow Automations for Black Friday: What to Freeze](https://ocontis.studio/blog/post/shopify-flow-automations-for-black-friday-what-to-freeze/): Map Black Friday admin events to Shopify Flow triggers, then assign a native workflow, a staff queue, or an external tool before the freeze. - [Shopify Markets Black Friday Traps: Duties, Currency, and Catalog Gaps](https://ocontis.studio/blog/post/shopify-markets-black-friday-traps-duties-currency-and-catalog-gaps/): Record duties, currency, shipping, and catalog gaps in each Shopify market before Black Friday ads go live. Complete a buyer checkout walk in every live market. - [Shopify Automatic Discounts vs Functions for Black Friday Promos](https://ocontis.studio/blog/post/shopify-automatic-discounts-vs-functions-for-black-friday-promos/): Choose Shopify automatic discounts or Discount Functions for Black Friday. Map stacking, BOGO, tiers, gift-with-purchase, Plus, and peak load before the freeze. - [How to Stop Shopify Oversells During Black Friday Flash Sales](https://ocontis.studio/blog/post/how-to-stop-shopify-oversells-during-black-friday-flash-sales/): Stop Shopify oversells during Black Friday flash sales. Write an available-to-sell number, an oversell rule, and a channel-sync check before ads go live. - [A Shopify Black Friday Readiness Checklist for Brands That Already Scale](https://ocontis.studio/blog/post/shopify-black-friday-readiness-checklist-for-scaling-brands/): Walk a dated Shopify Black Friday readiness checklist for a brand that already scales. Sign off checkout, inventory, fulfilment, and support gates first. - [When Shopify WebMCP Matters vs the Claude Admin Connector](https://ocontis.studio/blog/post/when-shopify-webmcp-matters-vs-the-claude-admin-connector/): Shopify WebMCP serves shopper-tab agents. The Claude admin connector serves staff ops. Choose which surface to enable first and which risk you accept. - [When to Use Checkout UI Extensions vs Shopify Functions](https://ocontis.studio/blog/post/when-to-use-checkout-ui-extensions-vs-shopify-functions/): Shopify Plus checkout splits UI extensions for display and Functions for logic. Match each capability to the job before scoping custom work. - [Why Shopify Contribution Margin Breaks When Stack, PDP, and Ads Don't Align](https://ocontis.studio/blog/post/why-shopify-contribution-margin-breaks-when-stack-pdp-and-ads-dont-align/): Contribution margin only holds when marketing, ecommerce, and ops share one order-level number. Build that worksheet before you scale ad spend. - [AI Shopping Traffic and Agentic Commerce on Shopify](https://ocontis.studio/blog/post/ai-shopping-traffic-and-agentic-commerce-on-shopify/): ChatGPT and AI assistants are driving real Shopify orders. Learn where AI traffic lands, how to attribute it, and what to fix before agentic commerce scales. - [Why DTC Brands Must Fix the Shopify PDP Before Turning On Ads](https://ocontis.studio/blog/post/why-dtc-brands-must-fix-the-shopify-pdp-before-turning-on-ads/): Before you scale paid traffic, audit the Shopify product page on a phone: price, variants, hero match to the ad, and add-to-cart. Fix those leaks first. - [Why Shopify Stores Can't Scale on a Bloated Tech Stack](https://ocontis.studio/blog/post/why-shopify-stores-cant-scale-on-a-bloated-tech-stack/): Shopify stores stall at scale when two apps write the same order field. Map webhook owners, metafields, and rate limits before the next campaign spike. - [How to Keep the Shopify Claude Connector Away from Production Data](https://ocontis.studio/blog/post/how-to-keep-the-shopify-claude-connector-away-from-production-data/): Shopify has no native sandbox for the Claude connector. Three architecture patterns keep AI queries and write experiments off your live storefront. - [Shopify Additional Scripts Cutoff on 26 August 2026: What Happened and What to Do Now](https://ocontis.studio/blog/post/shopify-additional-scripts-cutoff-on-26-august-2026-what-happened-and-what-to-do-now/): After the 26 August 2026 auto-upgrade, Additional Scripts stopped on non-Plus Shopify stores. Check if Google, Meta, and TikTok purchase tracking still fires. - [Shopify WebMCP: What In-Browser AI Agents Can Do on Your Store](https://ocontis.studio/blog/post/shopify-webmcp-what-in-browser-ai-agents-can-do-on-your-store/): Shopify WebMCP registers catalog, cart, and checkout tools on Liquid storefronts. What merchants should test before treating in-tab agents as a channel. - [How to Fix Shopify Accessibility Bugs That Block WCAG AA](https://ocontis.studio/blog/post/how-to-fix-shopify-accessibility-bugs-that-block-wcag-aa/): Ten Shopify accessibility bugs that block WCAG AA, who owns each fix, and how to remediate theme, app, and hosted checkout gaps without overlay theatre. - [Shopify Theme Customisation Limits: When Your Store Leaves the Supportable Path](https://ocontis.studio/blog/post/shopify-theme-customisation-limits-when-your-store-leaves-the-supportable-path/): Shopify theme customisation leaves the supportable path when Liquid, section groups, and dynamic sources diverge. How to tell, and what to do next. - [Shopify Sidekick's Continual Learning Flywheel: What Merchants Should Know](https://ocontis.studio/blog/post/shopify-sidekicks-continual-learning-flywheel-what-merchants-should-know/): Shopify Sidekick now runs a daily continual learning loop on production traffic. What the flywheel means for Admin GraphQL, merchant ops, and custom stack work. - [How to Fix Shopify Operational Friction When Simple Tasks Still Take Too Long](https://ocontis.studio/blog/post/how-to-fix-shopify-operational-friction-when-simple-tasks-still-take-too-long/): Simple Shopify tasks that still take spreadsheets, exports, and three apps usually signal stack debt. Diagnose friction by root cause before adding tools. - [Shopify Soft Navigation and the Web Pixel Gap](https://ocontis.studio/blog/post/shopify-soft-navigation-and-the-web-pixel-gap/): Liquid partials enable app-like soft navigation on Shopify themes. Web pixel customer events still do not follow standard storefront events after a region swap. - [BigCommerce Draft Order Fees and B2B ERP Workflows: When Platform Economics Push You to Shopify](https://ocontis.studio/blog/post/bigcommerce-draft-order-fees-and-b2b-erp-workflows-when-platform-economics-push-you-to-shopify/): BigCommerce billing changes on draft and manual orders hit B2B brands that run bank transfer and Sage outside the cart. When replatforming to Shopify pays off. - [Modern Customer Segmentation on Shopify: A Research Guide for DTC Brands](https://ocontis.studio/blog/post/modern-customer-segmentation-on-shopify-a-research-guide-for-dtc-brands/): How established Shopify brands segment customers: RFM, behavioural cohorts, Shopify Segments, metafields, and stack design that stays maintainable. - [Shopify Liquid Partials: Swap Main Content Without Reloading Header and Footer](https://ocontis.studio/blog/post/shopify-liquid-partials-swap-main-content-without-reloading-header-and-footer/): Use Shopify Liquid partials and partial-rendering to load header and footer once, then refresh only the main content region on in-theme navigation. - [Shopify AI Product Discovery: UCP Catalog and Data Readiness](https://ocontis.studio/blog/post/shopify-ai-product-discovery-ucp-catalog-and-data-readiness/): AI shoppers discover products through HTML, llms.txt, and UCP catalog layers. What each surface exposes, and how to prioritise Shopify catalogue fixes. - [Shopify Claude Connector App: Setup, Permissions, and Risks](https://ocontis.studio/blog/post/shopify-and-claude-connector-setup-benefits-and-risks-for-merchants/): Shopify Claude connector app: install from Claude, not the App Store. What it can read and write, plus production risks before you approve live changes. - [How to Fix Shopify Markets Cache Issues When Products Disappear After a Catalog Split](https://ocontis.studio/blog/post/how-to-fix-shopify-markets-cache-issues-when-products-disappear-after-a-catalog-split/): Stale banners, intermittent 404s, and missing products after a Shopify Markets split usually trace to catalog publishing or edge cache, not the theme. - [Shopify UCP Global Catalog: Lessons From Building a Catalogue Explorer](https://ocontis.studio/blog/post/shopify-ucp-global-catalog-lessons-from-building-a-catalogue-explorer/): What we learned building a UCP Global Catalog explorer: product data architecture, catalog visibility, pagination limits, and hint-based infinite scroll. - [Shopify Payments Reserves: Does Upgrading to Plus Change Anything?](https://ocontis.studio/blog/post/shopify-payments-reserves-does-upgrading-to-plus-change-anything/): Shopify Payments reserves can hold thousands after chargeback events. Upgrading to Plus rarely speeds Credit Risk reviews. What merchants should do instead. - [How to Fix Metaobject Filters Combined with Storefront Search on Shopify](https://ocontis.studio/blog/post/how-to-fix-metaobject-filters-combined-with-storefront-search-on-shopify/): Fix Shopify metaobject filters combined with storefront search: why each works alone, why together they return zero results, and how to diagnose the query. - [How to Fix Shopify Checkout Abandonment When Your Funnel Looks Healthy](https://ocontis.studio/blog/post/how-to-fix-shopify-checkout-abandonment-when-your-funnel-looks-healthy/): Strong add-to-cart and checkout-start metrics with zero purchases usually mean a last-mile problem. Bucket abandoned checkouts and isolate payment friction. - [The Hidden Cost of Running a Shopify Store: When 12 Apps Quietly Eat Your Margins](https://ocontis.studio/blog/post/the-hidden-cost-of-running-a-shopify-store-when-12-apps-quietly-eat-your-margins/): How to avoid Shopify tech stack bloat: subscriptions, overlap, script weight, and reconciliation time. Audit the stack before margin disappears after launch. - [Google AI Overviews for Shopify: What Merchants Should Actually Optimise](https://ocontis.studio/blog/post/google-ai-overviews-for-shopify-what-merchants-should-actually-optimise/): Google AI Overviews are reshaping product discovery, but most Shopify merchants optimise the wrong layer. Which levers matter, and what to fix first. - [Migrating from Amazon Seller Central to Shopify: Building Your D2C Channel](https://ocontis.studio/blog/post/migrating-from-amazon-to-shopify/): Guide for Amazon sellers launching a Shopify D2C channel. Covers catalog import, Brand Registry, off-Amazon traffic, inventory sync, and realistic expectations. - [Migrating from Wix and Squarespace to Shopify: A Practitioner's Guide](https://ocontis.studio/blog/post/migrating-from-wix-squarespace-to-shopify/): Guide for brands moving from Wix or Squarespace commerce to Shopify. Covers export limits, design rebuild expectations, SEO reset risk, and realistic timelines. - [Migrating from PrestaShop to Shopify: A Practitioner's Guide](https://ocontis.studio/blog/post/migrating-from-prestashop-to-shopify/): Practical PrestaShop to Shopify migration guide. Covers module audit, multi-shop consolidation, legacy URL redirects, and catalogue rebuild practices. - [Migrating from Shopware to Shopify: A Practitioner's Guide](https://ocontis.studio/blog/post/migrating-from-shopware-to-shopify/): Guide for EU brands migrating from Shopware to Shopify. Covers rule builder, B2B pricing, Shopware Markets mapping, data export, and SEO redirect planning. - [Migrating from BigCommerce to Shopify: A Practitioner's Guide](https://ocontis.studio/blog/post/migrating-from-bigcommerce-to-shopify/): Guide to migrating from BigCommerce to Shopify. Covers Stencil to Liquid rebuild, product option mapping, app equivalents, URL redirects, and launch planning. - [Migrating from WooCommerce to Shopify: A Practitioner's Guide](https://ocontis.studio/blog/post/migrating-from-woocommerce-to-shopify/): Practical WooCommerce to Shopify migration guide. Covers WordPress decoupling, plugin audit, subscription mapping, URL redirects, and common mistakes. - [Why Your Shopify Store Can Hit 4x ROAS and Still Lose Money](https://ocontis.studio/blog/post/why-your-shopify-store-can-hit-4x-roas-and-still-lose-money/): A 4x Shopify ROAS does not guarantee profit. Learn why contribution margin matters more than return on ad spend, and how to judge campaigns on unit economics. - [Migrating from Magento to Shopify: A Practitioner's Guide](https://ocontis.studio/blog/post/migrating-from-magento-to-shopify/): Guide to migrating from Magento or Adobe Commerce to Shopify. Covers configurables, metafields, URL redirects, integration scope, and common failure modes. - [Common Theme Mistakes That Kill Conversion Rates](https://ocontis.studio/blog/post/common-theme-mistakes-that-kill-conversion-rates/): Shopify theme mistakes, bloated JavaScript, over-animated UX, weak accessibility, and misused sections cut conversion. A practical audit from real builds. - [The Anatomy of a High-Performance Shopify Theme](https://ocontis.studio/blog/post/the-anatomy-of-a-high-performance-shopify-theme/): High-performance Shopify themes rely on clean Liquid architecture, lean assets, modular sections, and fewer apps, not just fast page scores. - [Online Store 2.0: What Changed and Why It Matters](https://ocontis.studio/blog/post/online-store-2-0-what-changed-and-why-it-matters/): Online Store 2.0 introduced JSON templates and sections on every page type, so merchants can edit layouts without developers. What changed and when to upgrade. - [Liquid Explained for Store Owners (No Code Required)](https://ocontis.studio/blog/post/liquid-explained-for-store-owners-no-code-required/): Shopify Liquid controls storefront layout, metadata, and performance. Learn what it affects, why theme architecture matters, and how it shows up at scale. - [What Should I Do If My Shopify Revenue Is Plateauing?](https://ocontis.studio/blog/post/why-most-shopify-stores-dont-scale-past-50k-month/): How to scale a Shopify store past a growth plateau. Causes include paid traffic, app sprawl, weak retention, and ops debt, with a stack-audit checklist. - [Choosing the Right Shopify Plan: A Practical Decision Framework](https://ocontis.studio/blog/post/choosing-the-right-shopify-plan-a-practical-decision-framework/): What Shopify plan should you choose? Match order volume, Payments rates, fees, reporting, and checkout roadmap to Starter, Basic, Grow, Advanced, or Plus. - [The Real Cost of Running a Shopify Store](https://ocontis.studio/blog/post/the-real-cost-of-running-a-shopify-store/): Running a Shopify store costs more than the plan: transaction fees, apps, maintenance, and constraint workarounds. Compare total cost against platform debt. - [What Is Shopify? Features, Limitations, and Use Cases](https://ocontis.studio/blog/post/what-is-shopify-features-limitations-and-use-cases/): Shopify platform capabilities include managed hosting, APIs, Liquid themes, apps, and Plus checkout tools inside a fixed data model. See what breaks at scale. - [Maximizing Customer Lifetime Value on Shopify Plus](https://ocontis.studio/blog/post/maximizing-customer-lifetime-value-on-shopify-plus/): Customer lifetime value on Shopify Plus grows through segmentation, personalisation, loyalty, and retention, not acquisition alone. Practical ways to raise CLV. ## Projects - [YuMOVE](https://ocontis.studio/projects/yumove/): YuMOVE subscription migration consultancy, custom quiz, and Trustpilot performance work by oContis Studio. - [Umberto Giannini](https://ocontis.studio/projects/umberto-giannini/): Umberto Giannini Shopify 2.0 migration, Recharge widgets, and merchant self-serve merchandising by oContis Studio. - [Senarah](https://ocontis.studio/projects/senarah/): Senarah Shopify 2.0 theme migration, Figma-led custom sections, app consolidation, and CRO-ready build by oContis Studio with Enchant... - [Scrumbles](https://ocontis.studio/projects/scrumbles/): Scrumbles Shopify rebuild: Gadget app migration, Skio subscriptions, and theme work keeping DTC the fastest-growing channel for gut-friendly... - [RTR Vehicles](https://ocontis.studio/projects/rtr-vehicles/): RTR Vehicles Shopify dealer finder with CSV inventory, metaobjects, VIN deduplication, and GraphQL updates. - [RevR](https://ocontis.studio/projects/revr/): RevR: Custom Shopify theme development, store setup, and e-commerce consulting by oContis Studio for a sustainable body-sculpting fashion... - [QDQ Club](https://ocontis.studio/projects/qdq-club/): QDQ Club Shopify 2.0 theme and model-size metaobjects by oContis Studio. Fit-led storefront that cut returns 62%. - [Medik8](https://ocontis.studio/projects/medik8/): Medik8: Shopify 2.0 migration, bespoke sections, and multi-store architecture by oContis Studio. A scalable skincare flagship built for... - [Lanoguard](https://ocontis.studio/projects/lanoguard/): Lanoguard Shopify 2.0 migration, custom theme, Application Centres map, and B2B hub by oContis Studio. - [Kloudy Matcha](https://ocontis.studio/projects/kloudy-matcha/): Kloudy Matcha Shopify theme development: bespoke review component, pack pricing logic, and subscription setup woven into one PDP... - [Kem Collection](https://ocontis.studio/projects/kem-collection/): Kem Collection Shopify 2.0 theme, lookbook, and model size guides by oContis Studio for Kem Cetinay's debut line.... - [Jordana Ticia](https://ocontis.studio/projects/jordana-ticia/): Jordana Ticia Shopify 2.0 theme for merchant self-serve merchandising and CRO-ready iteration by oContis Studio with Enchant Digital.... - [Ghost Fragrances](https://ocontis.studio/projects/ghost-fragrances/): Ghost Fragrances modular Shopify theme: app consolidation, native gift configurator, and CRO-ready architecture that cut monthly app overhead... - [Filter by Molly Mae](https://ocontis.studio/projects/filter-by-molly-mae/): Filter by Molly-Mae: Shopify theme development, store setup, and e-commerce consulting by oContis Studio for a creator-led beauty... - [DES-VU](https://ocontis.studio/projects/des-vu/): DÈS-VU custom Shopify development, branding integrations, and retention strategies by oContis Studio for a Gen-Z streetwear D2C brand.... - [Botari](https://ocontis.studio/projects/botari/): Botari Shopify storefront: CRO-led theme development, Shopify Markets, wholesale, and Klaviyo by oContis Studio for a K-beauty hand... - [BDXY Studios](https://ocontis.studio/projects/bdxy-studios/): BDXY Studios replatform from The Hut Group to Shopify with a custom Store 2.0 theme and retention integrations.... - [Anam Attire](https://ocontis.studio/projects/anam-attire/): Anam Attire Squarespace to Shopify migration with a custom Store 2.0 theme for luxury Pakistani fashion. - [47 Skin](https://ocontis.studio/projects/47-skin/): 47 Skin Shopify 2.0 theme, UK/US multi-store architecture, and checkout-native gift with purchase by oContis Studio. ## Project Industries - [Auto/Moto Projects](https://ocontis.studio/projects/industry/auto-moto/): Shopify auto and moto projects by oContis Studio. Theme development for catalogue-heavy vehicle brands and technical ranges. - [Beauty & Skincare Projects](https://ocontis.studio/projects/industry/beauty-and-skincare/): Shopify beauty and skincare case studies by oContis Studio. Review-led PDPs, creator launches, and Online Store 2.0 themes. - [Fashion & Apparel Projects](https://ocontis.studio/projects/industry/fashion-and-apparel/): Shopify fashion and apparel case studies by oContis Studio. Custom theme development and DTC storefronts for clothing brands. - [Health & Wellness Projects](https://ocontis.studio/projects/industry/health-and-wellness/): Shopify health and wellness case studies by oContis Studio. Subscription-ready storefronts and theme work for repeat purchase. ## Service Offerings - [Shopify Stack Audit](https://ocontis.studio/services/shopify-stack-audit/): Structured Shopify stack audit for established DTC brands. Diagnose theme, apps, data, and checkout when stack bloat or scaling limits block growth. · Stack Recovery · Diagnose - [Shopify Theme Development](https://ocontis.studio/services/shopify-theme-development/): Bespoke Shopify Online Store 2.0 theme development: modular sections, lean assets, merchant-friendly admin, and performance built in from day one. · Technology · Rebuild - [Shopify App Development](https://ocontis.studio/services/shopify-app-development/): Custom Shopify app development and private integrations when off-the-shelf apps create overlap, fragility, or margin erosion. · Technology · Custom builds - [Shopify UI Extensions and Functions](https://ocontis.studio/services/shopify-ui-extensions-and-functions/): Checkout and customer account UI extensions plus Shopify Functions for pricing, delivery, and payment logic on Shopify Plus. · Shopify Plus · Checkout - [Replatforming and Migration](https://ocontis.studio/services/replatforming-and-migration/): End-to-end Shopify migration from WooCommerce, Magento, BigCommerce, and custom platforms. Data mapping, redirects, theme rebuilds, and SEO continuity. · Migration · Replatforming - [Integrations and System Optimisation](https://ocontis.studio/services/integrations-and-system-optimisation/): ERP, PIM, CRM, and fulfilment integrations for Shopify. We tidy data flow, cut app sprawl, and wire a coherent stack for DTC brands. · Technology · Integrations ## Optional - [Privacy Policy](https://ocontis.studio/privacy-policy/): Privacy and data handling policy - [RSS Feed](https://ocontis.studio/feed.xml): Full blog feed for syndication and monitoring - [Sitemap](https://ocontis.studio/sitemap.xml): Complete index of published pages, posts, and projects - [Robots](https://ocontis.studio/robots.txt): Crawler directives including LLMS discovery and Content Signals (search and AI input allowed, training declined) - [Shopify Partners Directory](https://www.shopify.com/partners/directory/partner/ocontis): Official Shopify partner profile and merchant reviews - [shopexperts](https://shopexperts.com/freelancers/octavian-contis): Verified Shopify expert profile for Octavian Contis - [Storetasker](https://www.storetasker.com/experts/octavian-contis): Senior Shopify developer profile and client reviews on Storetasker - [X](https://x.com/oContis_Studio): Studio updates and Shopify commentary- [Instagram](https://www.instagram.com/ocontis.studio): Studio updates and behind-the-scenes- [Facebook](https://web.facebook.com/people/oContis-Studio/61595133051500/): Studio page and announcements- [LinkedIn](https://www.linkedin.com/in/ocontis): Founder profile and professional background- [GitHub](https://github.com/octipus): Open-source and development work- [Medium](https://medium.com/@ocontis): Long-form articles and essays- [YouTube](https://www.youtube.com/@ocontis_studio): Video content and tutorials