Magento 2 & Hyvä, done right by one developer.

MCP is an open protocol Anthropic shipped in November 2024 that lets large language models talk to external tools and data sources through a standard interface. Think of it as USB-C for AI, one socket, many devices. For Magento, MCP means Claude, ChatGPT, or Cursor can query your catalogue, check stock, summarise yesterday’s orders, or draft a discount code without you writing five different REST integrations. The protocol crossed tribal lines fast: OpenAI and Google both adopted it in early 2025, and Adobe made it the default agent protocol for Commerce at Summit 2026. That puts MCP in the same “assume it’s there” bucket as JSON-RPC or OAuth, you build for it once and every major AI client gets your Magento data for free.

Both. Everything in the build runs on stock Magento 2.4.7+ Open Source, there’s no Adobe Commerce-specific API used. The observer hooks into catalog_product_save_after, which is identical on both editions. The MessageQueue layer uses Magento’s built-in MessageQueue module (also Open Source). The only Adobe Commerce-only consideration is the Image Editor extension Adobe ships, which you’d disable to avoid duplicate processing. Bottom line: Open Source merchants get the full benefit without paying for Adobe Commerce just for image handling.

The honest minimum is 12 weeks of daily sales data per SKU, that’s enough for Prophet to lock onto a weekly pattern and produce a usable 4-6 week forecast. With 26 weeks you start getting yearly seasonality. With 52+ weeks (one full annual cycle including your peak season) Prophet really shines and you can forecast 90 days out with sub-15% MAPE on most retail SKUs. Below 12 weeks, do NOT use Prophet, fall back to a 28-day moving average plus a manual safety-stock multiplier. The model will overfit garbage if you feed it too little.

No, they are different products from the same company. Hyvä Theme is a free, open-source (OSL3) Tailwind + Alpine storefront frontend for Magento, released to free in November 2025. Hyvä Commerce is a paid commercial suite of admin, media, and CMS modules that sits on top of Magento Open Source. You can run Theme without Commerce, but most stores that buy Commerce also use Theme.

Yes, in the segments where it’s strongest. Magento (Open Source + Adobe Commerce) will dominate enterprise B2B, multi-store, regulated industries, and EU-compliance-heavy commerce through 2030 and beyond. Where it bleeds is the SMB / DTC segment under $5M GMV, which Shopify already won and now cements with Sidekick + Hydrogen. Magento survives, but its addressable market shrinks: from “everyone” to “serious B2B + custom-heavy enterprise.” That’s still a multi-billion-dollar segment globally. The platform isn’t going anywhere; the merchants who choose it just look more specific.

Honest cut, toy-and-hobby specific:

• Amazon, you cannot beat them on price, search ranking, or Prime shipping. Don’t try. Use Amazon as a sales channel via Magento + Channel Advisor / Codisto for the brands where Amazon Buy Box is already a settled question. Keep DTC for higher-margin SKUs, exclusives, pre-orders, and bundles Amazon can’t replicate.
• Shopify, great under $1M GMV, decent app marketplace for toys (Recharge for subscriptions, Klaviyo, Loop Returns). Pain points: 100-variant ceiling (2,000 on Plus) hurts if you carry Funko Pop in 14 variants per character or Lego in size/age multi-axes. Pre-order apps work but are clunky. Q4 surge handling is fine until you hit ~$5M GMV.
• Tabletop Tycoon / Crystal Commerce, purpose-built for hobby + LCS (local card shops) + TCG singles. Excellent for that niche, weaker for general toy retail. Most LCS owners I talk to either love it or have migrated off it for catalog limitations.
• Magento, wins when you carry both mass-market toys AND collectibles, when pre-order + waitlist is a daily workflow (Pokemon TCG set launches, Magic pre-release, Lego anniversary), when compliance attributes (CPSC / EN-71 / AS-NZS) need to render per-region, when secondary market with condition grading is in scope, or when you’re multi-region (US + EU + UK + AU). Typical migration trigger: $2M-$5M GMV where the app stack on Shopify starts costing $800-$2,500/mo and the variant ceiling hurts.

Different problems get different platforms. The honest cut:

• MatterHackers is a vertically-integrated retailer with their own catalog + bureau + curriculum. You don’t “build a MatterHackers”, you sell on MatterHackers as a brand. Worth listing on if you make filament or accessories.
• Prusa Shop, Bambu Lab Store, FormLabs Direct are first-party brand stores. They exist to push that one manufacturer’s ecosystem. You can’t replicate them, you can only complement them as a multi-brand reseller.
• Magento + Hyvä is the right pick if you are (or want to be) a multi-brand reseller: stocking Bambu + Prusa + Creality + FormLabs + Markforged with filament from PolyMaker, Hatchbox, Prusament, Sunlu, etc. The platform handles the spec compatibility matrix (printer → compatible nozzles / hotends / plates), filament subscription auto-ship, schools B2B portal, and print-service bureau without an app-stack bill that grows linearly with revenue.

If you’re launching a single-brand specialty store (e.g. “Bambu Lab-only reseller”) Shopify works fine up to ~$2M GMV. Above that, or for multi-brand + B2B + subs + bureau, Magento is the lower-friction long-term home.