platy24 — Split the Bill, Keep the Friends
A no-signup bill-splitting web app where friends share a six-character tab code, claim what they ate, and see the shortest list of repayments.
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123,088 catalogue cards
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Black Zero’s Containment-Failure Simulator
An immersive launch site for Black Zero, a planned 1–4 player tactical co-op survival shooter set inside a collapsing quarantine zone.
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The Postcode Brief: a reconnaissance report for house hunters
A free England-and-Wales postcode research tool that gathers sold prices, crime, flood warnings, mining risk, heritage, noise and school-distance data before a property viewing.
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Pranav Deepak’s Mathematics and GPU Notebook
A personal archive of dense mathematics notes, programming experiments, and GPU-kernel writing.
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Plate Archive: 755 Public-Domain Science Plates
A catalogued archive of free-to-use botanical, celestial, zoological, anatomical, and other scientific illustrations.
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Rebel's Relay: The ALS Nomination Graph
A fan-run interactive graph tracing nominations in the ALS Ice Bucket Challenge made in support of Rebel (Tanea Brooks).
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RenderInvoice — the invoice generator with no opinions
A browser-based invoice renderer that turns flexible form data or JSON into selectable PDFs or PNGs, without requiring an account.
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Reprieve replays the agent run you cannot safely repeat
Reprieve captures failed AI-agent runs from existing traces, replays them in a sealed microVM, and turns the failure into a regression test and proposed fix.
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Residuos Dinámicos Turns Panama’s Food Waste Back Into Soil
A Panama-based recycling operation collects organic, garden, and inorganic waste from businesses, converting organic material into bocashi and returning measurable impact reports to clients.
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Rhythms of Geometry: Inés Silva in Three Languages
A multilingual online exhibition of Venezuelan artist Inés Silva’s geometric paintings, sculpture, biography, videos, and curatorial writing.
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Rihlaya — Heritage journeys with the arithmetic left visible
Rihlaya is preparing small-group heritage trips through the Levant, North Africa, and Andalusia, led by named historians, archaeologists, conservators, or craftspeople.
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rumo — neighborhood stories, signed and carried to an ending
A hyperlocal app where neighbors document an unfolding event under their real names until the story settles.
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Saber, the Smartphone That Wants to Be a Cinema Rig
Saber presents a $1,299 creator-focused smartphone with sapphire-covered sensors, a 1-inch camera sensor, AI lighting tools, and direct editing-workflow integration.
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Saj Serve, the business phone system you actually own
A self-hosted SIP PBX with a browser softphone, call routing, queues, trunks, and unlimited extensions, deployable on your server, VPC, or hardware.
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Sandustry’s Community Database for Falling-Sand Factory Builders
A free companion site for the Sandustry game, combining material data, a density calculator, production-chain planner, research tree, and factory guides.
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Sandustry Field Manual
An unofficial, source-checked guide to the early-access sandbox factory game Sandustry.
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Sandustry’s Field Manual for Water, Lava, and Crackstone
An independent guide site for Sandustry Early Access, covering factory construction, material systems, progression, and blueprints.
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SauveVideo, the video-repair service that shows its work first
A French-language tool for diagnosing and repairing corrupted MP4 and MOV files, with a free browser-based diagnosis and a preview before payment.
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SEAG Quest Turns Transfer-Test Practice into a Saga Map
A Belfast-built practice portal for Northern Ireland’s SEAG transfer test, combining gamified English and Maths questions with AI explanations and a parent dashboard.
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shareenv: Burn-After-Reading .env Sharing
A browser-based tool for sharing encrypted .env files and secrets through expiring, one-time links.
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Sound Forge: Atmosphere for the Table
A local session board for tabletop game masters to trigger music, ambience, effects, and transitions from one output.
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SpanAI Turns the AI Data Layer into an API
SpanAI connects sources such as Google Drive, Gmail, Postgres, Notion, and uploads, then deploys an organized data layer that can be queried through an agent API, REST, or MCP.
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SpendCap puts a circuit breaker on AI API bills
A proxy for OpenAI-compatible API traffic that assigns hard monthly spending caps to isolated keys.
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Sperm Intelligence Looks for the Fertile Cells Hiding in the Average
A single-cell reproductive intelligence platform for identifying predicted fertile sperm subpopulations in boars and bulls.