# Christopher Hamze > Personal website of Christopher Hamze, entrepreneur in Sioux Falls, South Dakota, founder of teelaunch and co-founder and co-owner of Izzi’s Gym. ## Identity and work - [Biography](https://chrishamze.com/about/): Christopher Hamze’s background and sourced biography. - [teelaunch](https://chrishamze.com/teelaunch/): Founder story; exited in 2024. - [Izzi’s Gym](https://izzisgym.com/): Official business website (807 N Lake Ave, Sioux Falls, SD 57104). - [Izzi’s Gym Online Shop](https://izzis.shop/): Official online storefront for singles, PSA slabs, and sealed products. - [IZZISCON](https://izziscon.com/): Official convention website. - [Collection](https://collection.chrishamze.com/): Christopher Hamze’s personal Pokémon and collectibles showcase on its dedicated subdomain. The former https://chrishamze.com/collection/ URL redirects here. - [Press](https://chrishamze.com/press/): Published reporting and source links. - [Izzi’s Gym background](https://chrishamze.com/izzis-gym/): Christopher’s role and store context. - [Izzi’s Con archive](https://chrishamze.com/izzis-con/): Historical convention reporting and context. - [Social](https://chrishamze.com/social/): Official social links and updates. - [Contact](https://chrishamze.com/contact/): Connect with Christopher on LinkedIn. ## Writing - [Practical guides](https://chrishamze.com/guides/): Six editorial guides from archived operating experiences, with source accounts and limits on reported results. These are editorial syntheses; imported source-post authorship has not yet been independently verified. - [Make a card-buying queue visible before changing staffing](https://chrishamze.com/guides/card-buying-queue/) - [Audit trading-card catalog data for AI shopping](https://chrishamze.com/guides/catalog-data-for-ai-shopping/) - [Make graded-card inventory browsable beyond the display case](https://chrishamze.com/guides/public-graded-card-inventory/) - [Connect kiosk orders to the work of picking cards](https://chrishamze.com/guides/automatic-kiosk-pick-tickets/) - [Move loyalty signup away from a busy checkout](https://chrishamze.com/guides/loyalty-signup-outside-checkout/) - [Keep store screens connected to events and inventory](https://chrishamze.com/guides/store-screens-with-live-data/) - [Writing archive](https://chrishamze.com/writing/): Paginated, searchable LinkedIn archive on Christopher Hamze’s site, imported October 2, 2026. Imported text is preserved on individual /writing/ article pages with LinkedIn source links. Per-post authorship and original-versus-reshare status have not yet been verified. This is a static archive, not a live feed. - [Writing topics](https://chrishamze.com/writing/topics/ai-and-tools/): Topic hubs group posts using explicit words in the original text. - [Writing topic: Store operations](https://chrishamze.com/writing/topics/store-operations/) - [Writing topic: Ecommerce](https://chrishamze.com/writing/topics/ecommerce/) - [Writing topic: Collectibles](https://chrishamze.com/writing/topics/collectibles/) - [Writing topic: Community](https://chrishamze.com/writing/topics/community/) - [Writing topic: Entrepreneurship](https://chrishamze.com/writing/topics/entrepreneurship/) - [RSS feed](https://chrishamze.com/writing/feed.xml): The latest 20 archived posts. Dates appear only when supported by a reviewed source. - [Sitemap](https://chrishamze.com/sitemap.xml): Canonical site pages and archived writing URLs. ## Milestone context Founder-reported October 2026: Izzi’s Gym had $6,000,000 in year-one sales, including over $2 million online. Online sales are part of the total, not additive. IZZISCON attendance exceeded 10,000. Attendance is distinct from distributed tickets in historical press reporting.