C2C Layer 0 | AI-Native & Crypto-Enabled Marketplace

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Joined June 2024
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Shack news fresh from the Swiss 🪸
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Shack 🪸 retweeted
Just spent 20 minutes querying different LLMs who else is trying to compete with incumbent C2C generalist or marketplaces. After asking the question multiple times and only getting listing tools or verticals the answer was OfferUp - founded 2014, wtf. Nobody is even trying to build an AI native C2C solution, let alone adding crypto!
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Let‘s rebuild the 🪸
Reef bleaching - Second-hand got infiltrated and corporatized It used to be a living 🪸. Local, human, playful and above all sustainable. People selling authentic used items from real homes - not warehouses or retail new dropshipping from abroad. As always markets found a way to infiltrate the system Incumbent corporate classifieds and marketplaces chased GMV, transactions and ads at all costs ( I was part of this ), opened the gates and the retail trawlers sailed in. The ‚sustainable second-hand ecosystem‘ died from the inside: - New retail disguised as used - Pallet-flippers and dropshippers - APIs for bulk uploads of retail new - Paid ads flooding the feed - Authenticity replaced by inventory Quantity > quality Reef bleaching of recommerce: how a vibrant secondhand community space becomes a corporatized supply chain. Ironically, platforms still heavily market it as sustainable while often 50–80% of the inventory is effectively new retail stock. This also happened offline. I talked to second hand dealer shops that sell retail new items that are designed as appearing vintage/second hand - the ultimate greenwashing. Second-hand is under attack. We believe recommerce should feel like a reef again: human, local, authentic, playful & sustainable. High time to rebuild the 🪸 through @shackxyz
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GM - contest in collab with @grabassteroid to create a tier list about anything funny or creative related to Jupiter and/or Jupiter Studio ecosystem still running until Monday 🪸
looking for sharp asses out there structuring weirdest data possible 👀 we’ve teamed up with folks @shackxyz to give away 3 Shacktibles NFTs from their OG collection through tier list contest to top 3 most creative minds! 🔸tier list contest: 3 winners 1st, 2nd, and 3rd place get 1 NFT each 🔸to participate: - like and repost this post - join assteroid X Community and follow our X page @grabassteroid - join Shack X Community and follow their X page @shackxyz - create a tier list about anything funny related to Jupiter and/or Jupiter Studio ecosystem - post it from your X account - share the link to your post and your SOL wallet address in replies under this post ⚠️ you have until 10 November (Monday) 11:59 PM UTC 2025 to submit your entry. selected winners to be announced on Tuesday. good luck everyone! 🦈☄️
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Shack 🪸 retweeted
J&J JUPITER STUDIO SPACE MONDAY 15:30 UTC Pull up, yappp, get studio ALPHA. x.com/i/spaces/1dRKZaPjDqaxB
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Apple approved $SHACK Movember release. Just in time for the most important day of the week for C2C marketplaces: Sunday
Codename $SHACK: Movember - release on its way 🪸
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Weeee 🪸
COLLECTING IS BACK ON SOLANA rip digital packs → physical cards drip shop live 👇
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Love the photos users take - who needs white background anyway
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Seeing some cool threads already - please make sure to link them here with your sol address for eligibility 🪸
We are hosting a Jupiter thread contest with @shackxyz 🎁 - 2 Winners : 1 x Hot & Shack NFTs for both winners ⚠️ Deadline: Monday next week 10th of Nov, 2025. We'll select the winners on Tuesday Eligibility: - Create a thread about how NFTs can benefit or what would be a cool integration into Jupiter - Follow Hot & Shack - Like, repost this post and tag 2 other threadors - Share the Link to your thread on X together with your Sol Address as reply on the main post here Good Luck to all participants 💙
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Crossed 13K authentic C2C live auctions across CH & DE. Getting great supply is still our main focus as we need to cover all categories to increase the likelihood of a broad buying intent to find what they are looking for. Once we get there: checkmate 🪸
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We‘re not aiming to be eBay, vinted or Ricardo with Shack 🪸 Main goal is to solve the global classifieds friction of chat negotiations, scams, bots, pro sellers and ads flooding the marketplace - that is meant to be and advertised as being for humans. Nevertheless by solving these issues for classifieds it naturally eats into the most profitable part of traditional recommerce transactional marketplaces - the trust based C2C layer. Over the last decade(s) some have chased the dream of becoming the next Amazon and building out B2C infrastructure (including myself) thereby sidelining private sellers. Backpaddling is happening, but quite hard as Pandora’s box is already open. Best part: if $SHACK is successful in reaching broad critical mass many more people will be throwing less things away and will be buying second hand - scaling sustainable commerce 🪸
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Bringing the offline car buying experience online - digital negotiation through auctions and ledgered public Q/A.
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GM - let’s build for the whole 🪸, not just the 1%.
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Codename $SHACK: Movember - release on its way 🪸
Shackstorm across German 🪸
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"The app “AuctionShack,” founded in Zug, is shaking up the secondhand market: after a successful launch in Switzerland, the platform has entered the Top 70 of the App Store charts in Germany." Follow @shackxyz, founded by @juliusilg for more updates x.com/juliusilg/status/19863…
Replying to @shackxyz
Thanks for the coverage! minor corrections added below "Zug-Based Auction App Expands Successfully into Neighboring Country The app “AuctionShack,” founded in Zug, is shaking up the secondhand market: after a successful launch in Switzerland, the platform has entered the Top 70 of the App Store charts in Germany. By Andreas Faessler Julius Ilg from Zug, formerly employed at Ricardo, has developed his own auction app “AuctionShack” (short: Shack), which has been online since the end of 2024. The goal is to enable people to sell used items quickly and with minimal effort. [ Buyers & Sellers pay no fees ]. The app uses AI to automatically identify and describe items, provides price recommendations, and accepts common payment methods as well as cryptocurrencies. In this way, Ilg aims to promote sustainable commerce and make [“Shack”] internationally known. This is why Ilg has taken the next step - and already the next one after that: the app has launched in Germany and, according to Ilg, immediately entered the Top 70 of the App Store shopping charts. After more than 50,000 Swiss users, Ilg is now pushing ahead with international expansion. In November, “AuctionShack” is set to launch in Austria. The app founder is overwhelmed by the development of his platform in Switzerland, even though the initial conditions were not easy. Julius Ilg: “The app was initially available only in German and English, even though Switzerland speaks four languages.” In addition, it was launched only in the Swiss iOS Store. Many potential users are not even registered there. Added to this were high marketing costs [ compared to other countries ] and the fact that “Shack” operates without employees or offices. Better Conditions than in Switzerland In Germany, Ilg sees great potential for “AuctionShack.” Since the transformation of eBay into a sales platform increasingly resembling Amazon, the market has lacked a true online auction provider like Ricardo in Switzerland. “Shack” aims to fill exactly this gap. Moreover, the conditions in Germany are simpler than in Switzerland, Ilg notes. The founder from Zug also plans to release the Android version at the end of the first quarter of 2026 and launch in the U.S. market by mid-2026. In parallel, he is targeting a larger financing round. Technologically, “Shack” is set to be further developed: in the future, users will be able to pay directly in the app with stablecoins - a digital payment method that operates on blockchain - especially useful for cross-border transactions. Ilg is also working on digital [ tokenization ] & authentication of collectibles to eliminate physical shipping needs and enable trading directly on the platform.
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GM - we identified the seller who is tanking the market
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Shack 🪸 retweeted
Displayed echo-chambering. We need to build jaw-dropping (pun intended) real word use cases outside DeFi to settle the „pure speculative asset“ debate with vengeance. Stablecoins are a great evolution - we can do much moar 🪸
Liquidity drives crypto cycles, and now, the money has stopped flowing in Stablecoins, ETFs, and DATs have grown from $180B to $560B since early 2024, but momentum has slowed Capital is rotating internally, not entering fresh → rallies die fast and breadth keeps narrowing
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Storage Wars are now Reef Wars. We were hoping bulk listings will show up eventually- mystery angle is 🪸
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We are hosting a Jupiter thread contest with @shackxyz 🎁 - 2 Winners : 1 x Hot & Shack NFTs for both winners ⚠️ Deadline: Monday next week 10th of Nov, 2025. We'll select the winners on Tuesday Eligibility: - Create a thread about how NFTs can benefit or what would be a cool integration into Jupiter - Follow Hot & Shack - Like, repost this post and tag 2 other threadors - Share the Link to your thread on X together with your Sol Address as reply on the main post here Good Luck to all participants 💙