The Postcode Brief
A free England-and-Wales postcode research tool for home buyers, combining sold prices, crime, flood warnings, mining, heritage, noise, and nearby-school data.
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143,648 catalogue cards
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PostureAudit, the email deliverability audit API
PostureAudit audits a domain’s SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT, BIMI, and DNSSEC configuration in one API request.
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PotLuck Inventory, the dispensary stock bridge
A cannabis-dispensary inventory system that syncs sold items from Dutchie, supports barcode counts, and publishes a live menu.
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Prelo, the handoff layer for AI-built websites
An open-source, self-hosted CMS that lets AI agents build and update websites while clients manage them through a familiar studio.
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PsychMeetings: a conference directory for psychiatry
A searchable directory of 2026–2027 psychiatry conferences, annual meetings, and CME events.
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QuickStash Pro, the bookmark-sized toolbox
A browser-based collection of small utilities for images, PDFs, text, business math, web work, files, and developer tasks.
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Quiet Pipes, for the plumbing of outbound
A contract GTM engineering service for enrichment, lead scoring, CRM sync, deliverability, and sending infrastructure.
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Raster Pine — a Java game engine, built in public
A public devlog and writeup series documenting one person building a small 3D game engine and game from scratch in Java, LWJGL, and raw OpenGL.
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Rhyme Maker, for Japanese-English rhyme hunting
A free rhyming tool that searches roughly 110,000 Japanese and English words by pronunciation and matching vowel patterns.
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Rydio Keeps the Bicycle Route Talking Offline
A cycling navigation app with offline maps, voice directions, live tracking, SOS alerts, Garmin support, elevation profiles, and route-specific wind data.
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Sacred Storm Butcher Shop & Marketplace
A Native-owned Rapid City marketplace for buffalo cuts, house-made foods, local goods, and products connected to community-led economic work.
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Sauvons les dauphins, page par page
A French information archive about dolphins on the country's coasts, fishing-related deaths, strandings, applicable law, and practical ways to respond.
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Сажень: инженерия для самостроя
A Russian-language calculator for people building their own house and land plot, covering foundations, wiring, heating, irrigation, greenhouses, and more.
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A Minecraft Feature Film Made in Public
Seraph Interactive is a nonprofit production company building a community-led animated feature film inside Minecraft.
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ShipMargin Shows the Math Behind Shipping and Seller Profit
A suite of free calculators for carrier rates, dimensional weight, customs, landed cost, freight, marketplace fees, and seller profit.
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Shop Daybook, the visor book for a two-truck shop
A notebook-replacement calculator for lawn and cleaning businesses that estimates yearly unbilled work from jobs, ticket size, weeks, and missed invoices.
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Sigil Turns Accessibility Audits Into Pull Requests
Sigil scans themes, templates, and CSS for WCAG and EN 301 549 failures, then opens source-level pull requests with diagnostics and evidence.
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A Balcony Over Banjarmasin
An independent guide to Menara Pandang, the riverside lookout where Banjarmasin’s history, transport, public space, and daily life meet.
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Skywaters, a privacy-first stack for Twin Cities organizers
A volunteer initiative offering technical consulting and donated secure hosting to Minneapolis-area nonprofits, mutual-aid groups, and grassroots organizers.
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Spin News: Read the Spin Side by Side
A multilingual news reader that groups coverage of the same event from around 90 newsrooms in more than 40 countries, then compares their framing.
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SSHerpa, an SSH toolkit for Android
A full-featured Android SSH client with terminal access, SFTP/FTP/S3 file browsing, port forwarding, key generation, agent forwarding, and optional encrypted device sync.
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Strictly Underground’s UK Rave Vault
A direct-download storefront for jungle, drum & bass, garage and rave releases, including MP3s, studio WAVs and vinyl.
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Strictly Jungle’s UK Underground Vault
A direct-to-listener storefront for three decades of UK rave, jungle, garage, and drum & bass releases, with instant MP3 and studio WAV downloads.
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TAB Bids Finds Federal Testing Work Hidden in Construction Specs
A specialized opportunity-intelligence service that identifies federal testing, adjusting, and balancing work inside construction bid packages.