DatumPie
DatumPie is the parent and innovation company. mSm RevenueOS is a private internal operating system, not a public SaaS product.
Founder-led software delivery for practical businesses.
Stackend sells clear outcomes: evidence-backed Revenue Leak Audits, fix sprints, conversion websites, AI workflow automation, contract engineering, QA/security work, and ongoing care. Specialists are brought in when scope requires them.
Start ScopeHow We Build
We build with AI as our primary engineering tool — specification, implementation, review, and testing, all directed and signed off by a human at every stage. It's faster, and it's how a growing number of serious shops build in 2026. We're not going to pretend otherwise, and we're not going to apologize for it either. What we will do is show you the tests, the architecture docs, and the working product.
What We Do
Revenue Leak Audit
A $795 evidence-backed audit for up to 10 public pages, with a customer report, technical remediation report, and captured evidence package.
Fix Sprint
Bounded implementation from $2,500, with scope, acceptance checks, and payment terms approved before work begins.
QA/QC & Security Testing
We run structured quality, accessibility, security, and regression checks, then turn the results into scoped fixes instead of vague risk notes.
Conversion Website Build
We design and build fast, responsive, conversion-focused sites with clear messaging, measurement readiness, and practical maintenance paths.
AI Workflow Automation
We design AI-supported workflows for lead follow-up, reports, research, quote prep, and operations, with validation and human approval where output affects customers or money.
Contract Engineering
We help with architecture, integrations, technical debt, release work, and product features at hourly or fixed-milestone scope.
Practical Technology
React & Next.js, Node.js & Python, React Native, AI & LLM APIs, and modern automated CI/CD deployment.
Our Projects