Arvion Technologies

Product engineering studio · Kathmandu, Nepal

We design, build and ship software: web platforms, mobile apps, cloud systems and the AI features that sit inside them. Small team, senior engineers, no hand-offs between design, backend and release.

_{Company profile: PDF · work and case studies · services · brand kit}

GharKo Sathi, on-demand home services in Nepal. KYC-verified professionals, escrow payments, dispute resolution, separate customer and partner apps. Flutter clients, React web, NestJS API, eSewa/Khalti payouts.	Hamro Sajha Bazaar, national multi-category marketplace: secondhand goods, vehicles, jobs, rentals, medical, trades, food. Seller verification, escrow, buyer protection, Nepali/English UI.

Written up with the problem, the build, the architecture and the decisions behind it.

In production

Product samples

All work and case studies →

Forty-two runnable projects, each with tests, a live demo and an honest README. They are how we work when nobody is watching. Every demo is static and runs in your browser, no sign-up, no API key. Full gallery: arvion-technology.github.io/labs

Pulse, product analytics: funnels, cohorts, live events	InvoiceFlow, invoicing with integer money math and tax rules
Slotwise, timezone-correct booking and scheduling	RAGForge, retrieval with citations and an eval harness

• Pulse: product analytics with funnels, retention cohorts and a live event stream · demo
• InvoiceFlow: invoicing and billing with integer money math, tax rules and recurring schedules · demo
• Deskly: helpdesk with business-hours SLA timers, macros and CSAT · demo
• Slotwise: booking engine with DST-correct availability and ICS export · demo
• Leadpipe: CRM with weighted forecast and stage-age tracking · demo
• PeopleOps: onboarding checklists, leave accrual and approvals · demo
• EventPass: ticketing with a QR encoder written from scratch · demo
• SchoolKit: attendance, fee ledger, exams and report cards · demo
• Atlas Portal: customer portal in Next.js 15 with React Server Components, invoices and tickets · demo
• Helm Ops: incident, deploy and on-call console in React 19 with a typed reducer · demo
• Vantage: billing admin console in Vue 3 with bulk changes and an audit diff view · demo

• Notewise: block editor with slash commands, nesting and Markdown round-trip · demo
• Canvas: infinite whiteboard with connectors, live cursors and PNG/SVG export · demo

• Bazaar Store: storefront and back office: catalogue, cart, promo codes, checkout, order states · demo

• Ledgerbox: invoicing and ledger in plain PHP 8 with SQLite, payments and aging · demo

• Relay: AI support agent with cited answers, tool calls and human hand-off · demo
• RAGForge: retrieval-augmented generation starter kit with BM25 retrieval and an eval harness that runs without an API key · demo
• DocMind: invoice and receipt extraction with confidence scoring and a review queue · demo
• LeadScout: researched outreach: crawl signals, explainable ICP score, cited drafts · demo
• PromptOps: prompt registry, assertion suites and regression diffs · demo
• ForecastLab: Holt-Winters forecasting with walk-forward backtesting · demo

• MockForge: stateful mock API server generated from an OpenAPI spec · demo

• TypeForge: JSON Schema to TypeScript, Zod, Python and Go models · demo

• FlagKit: feature flags with deterministic bucketing and targeting rules · demo

• EnvSafe: typed, validated environment configuration that fails at boot · demo

• SearchLite: full-text search with BM25, stemming, fuzzy queries and facets · demo

• Findr: log analysis CLI in Rust with filters, aggregations and percentiles · demo

• Gatekeeper: rate limiting HTTP gateway in Go, standard library only · demo

• QueueKit: durable background jobs with backoff, concurrency limits and a dead-letter queue · demo

• SocketChat: WebSocket chat server on node:http with no dependencies · demo

• Northwind API: typed minimal API in C# .NET 8 with xUnit tests and problem details · demo

• Tally: expense API on the JDK HTTP server, no framework and no build tool · demo

• Compose Cookbook: twelve Docker Compose stacks with healthchecks and backup scripts · demo
• K8s Blueprint: Helm chart and Kustomize overlays for a 12-factor app · demo
• AWS Baseline: Terraform modules for a secure, observable AWS account · demo
• CI Templates: reusable GitHub Actions workflows with least-privilege permissions · demo

• Arvion UI: design system: tokens, 30 components, contrast-checked themes · demo
• Motion Lab: CSS animation recipes with reduced-motion fallbacks · demo
• Landing Kit: six conversion-focused landing page templates · demo

• GharKo Sathi app: Flutter architecture case study from a production home-services app · case study
• Bazaar app: React Native marketplace case study with local payment rails · case study
• SyncKit: offline-first sync with vector clocks and a two-client simulation · demo

We keep a dated build log and engineering notes next to the code, the decisions, the gotchas, and what we chose not to do.

• Tests before screenshots. Every repository runs its own suite in CI on two versions of the runtime. If it is not tested, it does not go on the internet.
• Honest documentation. Each README says what the code does, how the hard part works, and what it deliberately does not do. No invented benchmarks.
• MIT licensed. Use the code, fork it, take the parts that help. That is the point of publishing it.
• Small, senior team. The person who designs the system writes the migration and answers the page at 2am.

If you need a product built end to end, web, mobile, cloud, payments, AI, we are a good fit for teams that want senior engineering without a large agency layer.

Website: arviontech.net · Email: hello@arviontech.net

Arvion Technologies Pvt. Ltd. · Ward No. 32, Tinkune, Kathmandu, Nepal · PAN 6236009191