AI product studio in Cheyenne, Wyoming. We build AI agents, custom AI apps and integrations for US and EU startups and SMBs, as a technology partner.https://s12vlabs.com/en-ushttps://s12vlabs.com/blog/background-sync-for-a-wearable-fleet/https://s12vlabs.com/blog/background-sync-for-a-wearable-fleet/BLE reconnection, iOS background modes and Android Doze, device buffering, idempotent uploads, clock drift, and fleet monitoring that catches a quiet device.Wed, 14 Oct 2026 00:00:00 GMTwearablesmobilesynchttps://s12vlabs.com/blog/building-an-evaluation-set-from-past-cases/https://s12vlabs.com/blog/building-an-evaluation-set-from-past-cases/How we build and keep an evaluation set for an LLM feature: choosing cases, labelling with the people who do the job, size, and growing it from production.Wed, 14 Oct 2026 00:00:00 GMTevaluationllmprocesshttps://s12vlabs.com/blog/classifying-messages-at-line-rate/https://s12vlabs.com/blog/classifying-messages-at-line-rate/Putting a classifier inline in a messaging platform: the millisecond budget, small models on your own traffic, the uncertain tail, fail-open versus fail-closed.Wed, 14 Oct 2026 00:00:00 GMTtelecommessagingclassificationhttps://s12vlabs.com/blog/computing-a-personal-hrv-baseline/https://s12vlabs.com/blog/computing-a-personal-hrv-baseline/Why population norms fail for HRV, how to choose the night-time window, how many nights a baseline needs, what to exclude, and how a deviation becomes an alert.Wed, 14 Oct 2026 00:00:00 GMThrvanalyticswearableshttps://s12vlabs.com/blog/consent-and-access-logs-in-a-health-platform/https://s12vlabs.com/blog/consent-and-access-logs-in-a-health-platform/Consent as a versioned record, roles for client, coach, clinic and admin, an access log the user can read, deletion that reaches backups, and audit trails.Wed, 14 Oct 2026 00:00:00 GMTprivacyhealth techgdprhttps://s12vlabs.com/blog/five-pos-integrations-and-one-definition-of-a-sale/https://s12vlabs.com/blog/five-pos-integrations-and-one-definition-of-a-sale/What integrating Toast, Square, Clover, Lightspeed and Syrve taught us about tokens, backfill, what counts as a sale, time zones and reconciliation.Wed, 14 Oct 2026 00:00:00 GMTintegrationsposrestaurantshttps://s12vlabs.com/blog/how-a-mobile-proxy-on-an-android-phone-rotates-its-ip/https://s12vlabs.com/blog/how-a-mobile-proxy-on-an-android-phone-rotates-its-ip/Carrier-grade NAT, how an Android phone gets a new public address, scheduled and remote rotation, sticky sessions, and serving proxy and VPN traffic from it.Wed, 14 Oct 2026 00:00:00 GMTproxiesandroidtelecomhttps://s12vlabs.com/blog/how-this-site-is-built/https://s12vlabs.com/blog/how-this-site-is-built/Astro pages served as Worker assets, validated content, a build audit, a generated sitemap and llms.txt, a hashed CSP and a deploy that tells IndexNow.Wed, 14 Oct 2026 00:00:00 GMTastrocloudflareseohttps://s12vlabs.com/blog/matching-invoice-lines-to-inventory-items/https://s12vlabs.com/blog/matching-invoice-lines-to-inventory-items/Why matching invoice lines to inventory items is harder than reading them: supplier naming, pack sizes, candidates, scoring, thresholds and corrections.Wed, 14 Oct 2026 00:00:00 GMTmatchingdatarestaurantshttps://s12vlabs.com/blog/reading-supplier-invoices-with-an-llm/https://s12vlabs.com/blog/reading-supplier-invoices-with-an-llm/The pipeline from a photographed or PDF invoice to structured lines: capture, pages, vision versus OCR, the schema, citations and accuracy per field.Wed, 14 Oct 2026 00:00:00 GMTdocumentsllmrestaurantshttps://s12vlabs.com/blog/ai-agent-in-an-existing-workflow/https://s12vlabs.com/blog/ai-agent-in-an-existing-workflow/Pick the workflow by its exceptions, build an evaluation set from past cases, run in shadow mode, widen permissions slowly, and what goes wrong.Tue, 13 Oct 2026 00:00:00 GMTai agentsworkflowsevaluationhttps://s12vlabs.com/blog/llm-integration-for-telecom-and-messaging/https://s12vlabs.com/blog/llm-integration-for-telecom-and-messaging/Traffic classification, abuse detection, support agents and provisioning in messaging platforms, and how latency and volume decide which model goes where.Tue, 13 Oct 2026 00:00:00 GMTtelecommessagingllmhttps://s12vlabs.com/blog/one-person-with-ai-agents/https://s12vlabs.com/blog/one-person-with-ai-agents/Why one person who writes code and runs agents can now ship products that needed a team of ten, what still needs people, and how S12V Labs is set up around it.Tue, 13 Oct 2026 00:00:00 GMTfoundersai agentshow we workhttps://s12vlabs.com/blog/what-an-ai-mvp-costs-in-2026/https://s12vlabs.com/blog/what-an-ai-mvp-costs-in-2026/Ranges for an AI MVP in 2026, in weeks and tens of thousands of dollars, where the budget goes, what to cut and what you cannot cut.Tue, 13 Oct 2026 00:00:00 GMTmvpfounderscustom appshttps://s12vlabs.com/blog/what-medical-grade-wearable-data-means-for-app-builders/https://s12vlabs.com/blog/what-medical-grade-wearable-data-means-for-app-builders/What CE-MDR and FDA clearance change versus consumer wearables, what continuous HRV, blood pressure and sleep data look like in practice, and what to build.Tue, 13 Oct 2026 00:00:00 GMTwearableshealth techhrv