There are moments when a product idea feels alive—clear, urgent, and impossible to ignore. For founders and engineering leads, that spark becomes pressure: pick the right technology and move fast without trading stability for speed.
After helping 100+ companies build real applications, the team found that three JavaScript stacks power most successful builds. Those proven paths deliver measurable uptime, performance gains, and faster time-to-market.
This buyer’s guide frames a practical approach: balance innovation with reliable, “boring tech” where it matters. Readers will see how front-end frameworks like React, Angular, and Vue pair with back ends such as Node.js, .NET, Java, or modern services like Supabase to speed delivery.
Expect evidence-driven outcomes: documented 99.9%+ uptime, 40–75% performance gains, and examples where MERN cut timelines by ~40%. The guide maps selection criteria—scope, compliance, scale, budget, and team—into a decision framework so teams can choose tech with confidence.
Key Takeaways
- Pick a tech stack that balances innovation and proven reliability for lower maintenance and predictable delivery.
- JavaScript stacks (MEAN/MERN/MEVN) drive fast development and wide talent availability.
- “Boring tech” often wins for uptime and cost control in enterprise settings.
- Supabase plus React can accelerate authentication, realtime data, and MVP delivery.
- Match choice to scope, compliance, and team skill to reduce time-to-market and risk.
Why Your Tech Stack Choice Matters Today
Choosing the right tech stack directly shapes delivery speed, performance, and long-term cost for any software project.
The combination of frameworks, databases, and platform services determines how frictionless development is. Seamless integration between components reduces bugs, shortens release cycles, and cuts rework.
Performance and scalability follow from those early choices: a coherent stack keeps uptime high and avoids costly re-architecture when user growth accelerates.
Operational costs and maintenance hinge on ecosystem maturity. Mature technologies offer abundant libraries, clear documentation, and active community support—so teams debug faster and ship with confidence.
- Hiring ramps faster when the chosen stack aligns with market talent.
- Security and compliance vary by platform; regulated projects often prefer enterprise-grade tooling.
- Using managed services for auth, realtime data, and storage offloads heavy lifting so developers focus on business logic.
Ultimately, the right tech stack is a strategic business decision. It affects time-to-market, team velocity, and customer experience—so align tech, team, and product goals before you build.
What a Tech Stack Is and How It Impacts Performance, Scalability, and Maintenance
The set of tools behind an application sets its performance, scaling limits, and maintenance curve.
A tech stack is the combined set of frontend, backend, database, and infrastructure technologies that power a web application. Frontend covers UI and interactivity (HTML, CSS, JavaScript). The backend runs server logic and APIs. Databases persist data. Infrastructure handles hosting, CI/CD, monitoring, and scaling.
Frontend, Backend, Database, and Infrastructure explained
Performance depends on efficient frameworks, optimized databases, and tuned infrastructure. Bottlenecks often come from mismatched layers or weak integration.
Scalability favors stateless services, appropriate data stores, and cloud primitives—load balancers, autoscaling, and managed databases—that grow without re-platforming.
The “boring tech” advantage for reliability and long-term cost
Proven technologies reduce maintenance because mature ecosystems offer stable libraries, clear upgrade paths, and strong community support. That lowers outages and debugging time.
| Layer | Role | Reliable examples |
|---|---|---|
| Frontend | UI, interactivity | HTML/CSS/JavaScript, React, Angular |
| Backend | Business logic, APIs | Node.js, ASP.NET, Java |
| Database | Persisting state | Postgres, MySQL, MongoDB |
| Infrastructure | Hosting, CI/CD, scaling | AWS/GCP/Azure, managed DB, load balancers |
- “Boring tech” stacks like LAMP, ASP.NET, and MEAN drove most top projects and deliver predictable uptime (99.9%+).
- Total cost reflects licenses, cloud usage, and developer time; proven stacks limit surprises through standard patterns.
- Teams move faster when architecture reduces context switching and aligns on common tools and community best practices.
Frontend Foundations: React, Angular, Vue for Modern Web Interfaces
Modern front ends set the tone for user experience and developer velocity on every web project. Frontend frameworks influence code organization, delivery cadence, and long-term maintenance.
When React leads for component reuse and performance
React excels at component reuse and virtual DOM rendering. It pairs naturally with React Native for mobile parity.
Teams building design systems or modular UIs will benefit from its ecosystem and abundant libraries. Hiring and community support remain strong, which speeds development and reduces risk.
Angular for enterprise structure and TypeScript rigor
Angular provides an opinionated framework with TypeScript-first discipline. That enforces consistency across large teams.
Its cohesive toolchain—CLI, testing, and DI—helps regulated projects maintain predictable code and simpler audits.
Vue for faster learning curves and rapid prototyping
Vue is lightweight and approachable, making it ideal for rapid prototyping and medium-complexity apps. Adoption has risen in 2024–2025.
Small teams often choose Vue to minimize setup time while preserving capability for future growth.
Performance relies on component design, state strategy, and build optimizations across any framework. Documentation maturity and community support shorten delivery cycles and stabilize long-term maintenance.
| Framework | Best for | Key strengths | When to pick |
|---|---|---|---|
| React | Design systems, cross-platform | Component reuse, vast ecosystem, React Native synergy | Modular apps and shared codebases |
| Angular | Enterprise apps, regulated projects | TypeScript-first, opinionated toolchain, consistency | Large teams needing structure |
| Vue | Prototypes, small to mid apps | Lightweight, easy learning curve, fast iteration | Rapid MVPs and small teams |
Backend Foundations: Node.js, .NET, Java, Python Considerations
A pragmatic backend aligns business goals with the right languages, runtimes, and deployment patterns.
Node.js excels for real-time features: chat, live dashboards, and collaboration tools. It lets teams use JavaScript end-to-end, reducing context switching for frontend and backend developers. Node.js performs well on I/O-bound workloads and speeds development for modern web applications.
ASP.NET Core and Java target mission-critical systems where compliance, performance tuning, and long-term support matter. These technologies provide enterprise-grade security, predictable scalability, and integration with identity services like Azure AD or SSO.
Python is ideal for data-heavy backends and AI-enabled services. Frameworks such as Django or Flask pair with TensorFlow, PyTorch, and scikit-learn to accelerate analytics, ML workflows, and rapid prototyping.
- Match selection to domain: real-time responsiveness, enterprise governance, or data intelligence.
- Consider integration with existing architecture, database choices, and team hiring pools.
- For mixed requirements, compose microservices to combine best-of-breed solutions while keeping clear API contracts.
Ultimately, map backend decisions to business requirements, security needs, and the team’s operating model to sustain development velocity and long-term scalability.
JavaScript Stack Choices: MEAN, MERN, and MEVN Compared
When teams pick a JavaScript path, the difference shows up in build speed, maintenance, and mobile parity. All three options share a common core: MongoDB, Express.js, Node.js, and JavaScript. That alignment simplifies hiring and reduces context switching across the full development lifecycle.
Shared core: MongoDB, Express.js, Node.js
The shared backend delivers consistent API patterns, predictable performance tuning, and easy containerized deployment. Operational teams report platforms handling 50k+ daily transactions and 10k+ concurrent users using these components.
MERN for React popularity and React Native synergy
MERN leverages React’s ecosystem and eases mobile parity via react native. Teams reuse design systems and code, speeding cross-platform development and lowering time-to-market.
MEAN for Angular’s opinionated structure
MEAN benefits larger teams: Angular’s TypeScript discipline enforces patterns that scale in complex SPAs and long-running projects.
MEVN for speed and simplicity
MEVN is lightweight and ideal for rapid prototyping. Startups often reach MVP and early funding faster with this approach.
- Integration with payments, auth, and analytics is mature across these ecosystems.
- Maintenance is easier thanks to broad community support and clear upgrade paths.
LAMP Still Wins for Cost-Effective, Proven Web Applications
The LAMP approach stays relevant for teams that need reliable results on a budget.
Why LAMP works: each component is free and open-source, supported by a mature community. PHP, MySQL, Apache (or Nginx), and Linux form a proven platform with broad hosting options. That lowers initial cost and simplifies hiring because many developers know these tools.

Why LAMP works: open-source, mature ecosystem, easy hiring
The ecosystem provides frameworks like Laravel, plugins, and tested performance patterns. Teams often implement automated MySQL backups and replication to protect data without heavy admin overhead.
“A custom Laravel + MySQL deployment achieved 99.9% uptime on Black Friday, 60% faster page loads, and $200K+ incremental revenue in year one.”
Best use cases: e-commerce, CMS, business apps on a budget
LAMP fits shops where cost control, maintenance predictability, and time-to-market matter. Typical projects include e-commerce sites, CMS-driven marketing platforms, and bespoke business applications.
| Use case | Strength | Result |
|---|---|---|
| E-commerce | Cost-effective hosting; caching and tuning | 99.9% uptime, faster loads, higher revenue |
| CMS / Marketing | Plugins, SEO tools, simple maintenance | Quick launches, low operating cost |
| Internal business apps | Large talent pool; easy hiring | Shorter time-to-fill; controlled maintenance |
- Cost: free core components reduce license fees and hosting choices fit low budgets.
- Maintenance: mature patterns simplify upgrades and security hardening.
- Scalability: start with vertical scaling and indexing; add read replicas or sharding later.
For teams prioritizing predictable delivery, strong community support, and measurable ROI, LAMP remains a pragmatic tech stack for many web applications.
Enterprise Stack Options: ASP.NET and Java for Security, Compliance, and Scale
Enterprise teams often standardize on proven Microsoft or Java platforms to meet strict security and compliance goals.
ASP.NET with Azure, C#, SQL Server for regulated industries
ASP.NET Core paired with Azure and SQL Server delivers integrated identity, logging, and compliance controls. In one financial deployment this combination produced a 75% performance improvement, 99.9% uptime, full SOX compliance, and a 50% cut in maintenance costs.
Java with Spring Boot for complex logic and massive uptime
Spring Boot scales for high-throughput, complex business logic. Fortune 500 supply chains use Java to sustain 99.99% uptime across 500+ locations and to integrate legacy systems reliably.
When to prefer Microsoft vs. Java ecosystems
Choose Microsoft when deep Azure integration, Active Directory, and vendor support speed integration. Pick Java when heterogeneous environments, legacy interop, or extreme throughput are primary requirements.
| Characteristic | Microsoft (ASP.NET) | Java (Spring Boot) |
|---|---|---|
| Typical use | Finance, healthcare, government | Supply chains, telecom, large enterprise |
| Strengths | Identity, compliance, Azure services | Scalability, legacy interop, high throughput |
| Outcomes | 75% perf gain; 99.9% uptime; SOX compliance | 99.99% uptime across distributed operations |
| When to pick | Existing Microsoft licenses; tight security needs | Heterogeneous systems; extreme scalability |
- Architecture matters: microservices, messaging, and tracing are essential for observability and safe scaling.
- Validate choices with pilots focused on throughput, latency, and fault tolerance before full rollout.
Python for AI/ML: Django/Flask with Data Science Tooling
Python’s ecosystem has become the default choice for teams building AI-driven back ends and data products. It pairs well with Django or Flask to deliver APIs, model serving, and database integration quickly.
Core libraries include TensorFlow, PyTorch, scikit-learn, Pandas, and NumPy. These tools power feature engineering, model training, and inference for analytics and production applications.
Django and Flask accelerate development with robust ORMs, security features, and easy integration with PostgreSQL. Teams often see measurable outcomes—automation that cuts support tickets by ~70% and ROI inside six months.
Typical workflows and deployment patterns
Model serving runs via REST or GraphQL endpoints; batch jobs handle retraining and feature stores preserve consistency. Scalability is managed with message queues, autoscaling compute, and managed databases.
Security and privacy matter: implement data governance, PII controls, and observability to track drift, latency, and accuracy. For an overview of Python frameworks, see the Python frameworks guide.
Ruby on Rails Today: Where It Still Fits and When to Migrate
For content-driven apps, Rails often cuts development hours through conventions and generators. That efficiency speeds early validation and keeps teams focused on product features.
Rails shines for MVPs, CMS, and e-commerce projects. Its scaffolding and opinionated framework reduce boilerplate and lift feature velocity. Small teams can launch fast and iterate on feedback.
At the same time, the specialist pool has tightened. Hiring experienced Rails developers can take longer and raise cost compared to JavaScript or Python ecosystems. That affects long-term maintenance and hiring risk.
- Keep Rails when migration risk or downtime outweighs potential gains.
- For new greenfield projects, evaluate Django or MERN for broader developer availability.
- If migrating, phase the work: map data models, preserve auth parity, and stage cutovers.
| Aspect | Rails | Django | MERN |
|---|---|---|---|
| Best use | Content sites, fast MVPs | Data apps, ML-adjacent back ends | JS-first web and mobile parity |
| Hiring | Smaller pool, higher time-to-fill | Broader pool, steady growth | Large pool, high demand |
| Maintenance & cost | Cost-effective when stable | Good long-term support | Flexible, easier scaling |
Measure uptime, response times, and change-failure rates to decide whether to optimize Rails or plan a staged transition. Weigh opportunity cost: if mobile parity and modern front-end patterns matter, a JavaScript-first route may align better with business goals.
Mobile Pathways: React Native and Cross-Platform Time-to-Market
Mobile teams often accelerate launch by reusing UI logic and components across web and native builds. A unified approach shortens delivery time and keeps the user experience consistent between platforms.
When a single codebase accelerates iOS and Android launch
React Native leverages JavaScript and React paradigms to deliver cross-platform apps with shared logic and UI patterns. Teams that pair React on the web can reuse design systems and components, cutting duplicate work and speeding development.
Alternatives include Flutter for high-performance UI and SwiftUI when platform polish or native APIs matter most. Consider device capabilities, animations, and SDK support before committing.
- Faster time-to-market: one codebase aligns feature parity and reduces QA cycles.
- Hiring speed: JavaScript talent shortens ramp time for mobile initiatives.
- Integration: common tools for auth, analytics, and push reduce backend friction.
- Performance caveats: use native modules and careful memory tuning for complex lists and animations.
For product teams prioritizing mobile parity, a shared-language approach in the tech stack often delivers the best balance of speed, maintainability, and developer availability. Read more about cross-platform mobile apps at cross-platform mobile apps.
From React to Supabase: Modern Integrations and Developer Velocity
A pragmatic integration of React and managed database services turns weeks of setup into days of feature work. Teams can pair a React or MERN front end with Supabase to handle authentication, PostgreSQL, and realtime subscriptions out of the box. This reduces initial development time and shortens the path to user feedback.
Pairing React/MERN with Supabase for auth, data, and realtime
Supabase supplies auth, managed Postgres, and realtime capabilities so developers focus on product-level features instead of boilerplate. SDKs simplify frontend integration and keep development velocity high.
Trade-offs vs. rolling custom backend and infra
- Eliminates weeks of backend scaffolding; speeds up go-live and iteration.
- Postgres under the hood gives familiar SQL reliability and easy migration paths.
- Managed services introduce platform constraints, pricing at scale, and potential migration complexity.
- Security improves with provider controls, yet teams must enforce least privilege and data governance.
- When strict compliance or complex domain logic exists, custom .NET/Java/Python backends may be preferable long term.
Run a quick proof-of-concept to validate realtime needs, multi-tenant design, and predictable costs. For architecture notes on managed Postgres and integration patterns, see the Supabase architecture guide, and learn how modern tooling shapes development teams in our piece on developer team evolution.
Real-World Benchmarks and Outcomes You Can Model
Measured benchmarks turn product debates into concrete targets. Teams can model outcomes from prior projects to set realistic service-level goals and design better development plans.
Uptime, performance, concurrency, and revenue impacts
Proven outcomes show what disciplined operations deliver: LAMP replatforms achieved 99.9% uptime, 60% faster page loads, a 40% cut in inventory refresh time, and $200K+ revenue uplift.
Enterprise builds using ASP.NET reported a 75% performance improvement, 99.9% uptime, SOX compliance, and a 50% reduction in maintenance costs. These results map to lower error rates and stronger security posture.
- Targets: 99.9%–99.99% uptime is achievable with proven stacks and automation.
- Performance gains of 40%–75% boost user satisfaction, SEO, and cost efficiency.
- Concurrency: JavaScript stacks supported 50k+ daily transactions and 10k+ concurrent users in production cases.
Faster go-live: MERN reducing time-to-market for SaaS
MERN reduced time-to-market by ~40% versus a Java path (from eight months to about 4.8 months) in a SaaS rollout. Faster launch enabled earlier revenue recognition and customer feedback loops—one startup reached a $5M Series A with 90% user satisfaction.
Use benchmarks to set SLAs, guide capacity planning, and justify investments in monitoring, database tuning, and managed services. Track latency, deploy frequency, and error budgets from day one to replicate these wins.
The Hiring Market, Team Size, and Budget Guide
Hiring reality shapes delivery: the available talent pool often dictates how fast teams can ship features.
JavaScript remains the largest developer market: 500k+ developers, typical pay $75–95k, and time-to-fill around 2–3 weeks. PHP/LAMP is sizable and fast to hire—300k+ developers, $65–85k, 1–2 weeks. Python for AI/data shows higher pay and longer searches: 200k+ developers, $85–105k, 3–4 weeks.
Budget bands and team norms guide planning. LAMP projects often launch for $25k–$75k. Java and ASP.NET enterprise work typically exceeds $100k. MERN/MEAN/MEVN MVPs sit in $50k–$150k. Python-led AI projects range $75k–$200k.
“Plan hiring sprints around time-to-fill to avoid idle development cycles.”
| Platform | Developers | Salary Range | Time-to-Fill |
|---|---|---|---|
| JavaScript (React/Node) | 500k+ | $75–95k | 2–3 weeks |
| PHP / LAMP | 300k+ | $65–85k | 1–2 weeks |
| Python (AI/Data) | 200k+ | $85–105k | 3–4 weeks |
| Java / ASP.NET | 150k–180k | $80–110k | 3–6 weeks |
- Hiring velocity varies: JavaScript and PHP shorten time-to-market.
- Team sizing: MERN MVPs need 3–5 developers (2–3 months); LAMP needs 2–4 (3–4 months); enterprise stacks require larger teams and longer time.
- Align budget, compliance, and developer availability to reduce cost and delivery risk.
How to Choose the Right Tech Stack: A Practical Decision Framework
Begin with constraints: budget bands, expected load, and regulatory needs quickly rule out unsuitable platforms. This turns fuzzy debates into a focused shortlist and shortens time-to-market.
Match project type, complexity, security, and TTM
Start by framing the project: domain complexity, compliance, and user scale determine viable tech options.
Use budget bands to narrow choices quickly: $25k–$75k — LAMP; $50k–$150k — MEAN/MERN/MEVN; $75k–$200k — Python for AI; $100k+ — ASP.NET/Java for enterprise.
Angular vs. React vs. Vue decision cues
For frontend selection, follow clear cues: Angular fits large teams needing strict structure. React suits component reuse and mobile parity. Vue helps small teams onboard fast and prototype quickly.
Scaling safely: maintenance and community support
Prioritize community, predictable upgrades, and vendor support to reduce long-term maintenance costs.
Pilot critical paths early—auth, payments, and data pipelines—to validate security, scalability, and integration risks.
| Decision Area | Quick Guideline | Result |
|---|---|---|
| Budget | LAMP for value; JS stacks for speed; ASP.NET/Java for enterprise; Python for AI | Faster budgeting and clear procurement |
| Team size | Angular for large teams; React for cross-platform; Vue for small teams | Lower onboarding time; higher velocity |
| Risk & Compliance | Prefer enterprise ecosystems for strict controls | Better auditability and support |
- Tip: Favor proven, “boring” tech when outcomes matter more than novelty.
- Pilot before full build to reduce costly rework.
Conclusion
Proven technologies often outpace trends when uptime, security, and maintenance matter most. , The data is clear: 95% of top projects used LAMP, ASP.NET, or MEAN and saw 99.9%–99.99% uptime and 40%–75% performance gains.
The optimal tech stack aligns to objectives, risk profile, and team skills. Prioritize developer velocity, mature tooling, and managed services to compress time-to-market.
Use a decision framework: map project type, budget, and compliance to a short list, then prototype to validate fit. For guidance on how to choose tech stack, see this practical guide: choose tech stack.
Set measurable targets—uptime, latency, and TTM—and revisit choices as the application scales. With a pragmatic mindset, teams pick the right tech and compound long-term business value.
FAQ
What is the recommended tech stack for building a modern web app that balances speed and reliability?
The ideal choice often combines a proven frontend framework like React with a Node.js backend and a managed database such as PostgreSQL or Supabase. This blend—popular in MERN-style approaches when MongoDB is used, or in React + Node + PostgreSQL setups—delivers fast developer velocity, strong community support, and clear upgrade paths for performance and scalability.
Why does the choice of technology stack matter for a product’s success?
Technology choices shape development speed, maintenance cost, security posture, and long-term scalability. A good match reduces time-to-market, simplifies hiring, and lowers technical debt. Conversely, a poor fit can inflate costs, slow feature delivery, and constrain growth—especially for teams targeting high concurrency or strict compliance.
What components make up a tech stack and how do they affect performance and maintenance?
A stack typically includes frontend (React, Angular, Vue), backend (Node.js, .NET, Java, Python), database (Postgres, MongoDB, MySQL), and infrastructure (cloud provider, CI/CD, containers). Each layer influences latency, cost, and operational overhead; for example, database choice affects transaction speed and scaling complexity, while backend language influences library availability and developer productivity.
When should a team prefer React over Angular or Vue for the frontend?
React excels when component reuse, ecosystem variety, and React Native mobile synergy matter. It supports high-performance UIs and a large talent pool. Angular is better for large enterprise apps needing strong conventions and TypeScript rigor. Vue is ideal for teams seeking a gentle learning curve and rapid prototyping.
How do Node.js, .NET, Java, and Python compare for backend services?
Node.js shines for real-time features and JSON-heavy APIs; it speeds development with a single-language approach. .NET and Java suit enterprise systems requiring strong typing, stability, and integrations with legacy systems. Python is preferred for data-heavy backends and AI workloads because of its rich libraries like TensorFlow and Pandas.
What are MEAN, MERN, and MEVN stacks — and how do they differ?
All three share MongoDB, Express.js, and Node.js. MEAN uses Angular for an opinionated structure; MERN swaps Angular for React, boosting component reuse and React Native compatibility; MEVN pairs Vue for simpler syntax and faster prototyping. Choose based on team expertise and project requirements.
Is LAMP still a valid choice today?
Yes. LAMP (Linux, Apache, MySQL, PHP) remains cost-effective and reliable for content-driven sites, e-commerce, and budget-conscious business apps. Its mature ecosystem and abundant hiring pool make it a pragmatic choice where extreme modernity isn’t required.
When should enterprises choose ASP.NET or Java stacks?
Choose ASP.NET with Azure and SQL Server for regulated industries that favor Microsoft tooling, integrated security, and enterprise support. Java with Spring Boot is ideal for complex business logic, microservices, and organizations requiring massive uptime and portability across clouds.
How does Python support AI/ML projects in a production stack?
Python integrates smoothly with ML frameworks—TensorFlow, PyTorch, scikit-learn—and data tools like Pandas. Frameworks such as Django or Flask can expose models as APIs, enabling analytics platforms, NLP services, and computer vision deployments with efficient model serving and orchestration.
When is Ruby on Rails still a good fit, and when should teams consider migrating?
Rails excels for rapid MVPs thanks to conventions and developer speed. However, teams may migrate when performance bottlenecks appear, specialized scaling is required, or hiring becomes difficult. Migration paths often move toward Node.js, Java, or managed cloud services depending on constraints.
Does React Native make sense for mobile-first products?
React Native is a strong choice when one codebase for iOS and Android reduces time-to-market and maintenance. It’s particularly effective for startups and products where native-level performance is not the primary constraint, and where React expertise already exists.
What benefits does pairing React with Supabase provide?
Supabase offers managed Postgres, realtime features, and built-in auth—accelerating backend setup for React apps. This reduces infra overhead and improves developer velocity, though teams should weigh trade-offs around vendor lock-in and custom backend needs for complex business logic.
Which real-world metrics should teams benchmark when selecting a stack?
Monitor uptime, request latency, concurrency limits, and cost per user. Also track time-to-market and developer onboarding time: MERN-style stacks often shorten MVP timelines, while enterprise stacks prioritize stability and compliance—metrics that directly affect revenue and growth.
How do hiring market and team size affect stack decisions?
Talent availability and time-to-fill vary by technology: React and Node.js roles fill faster in many markets, while specialized skills (Spring Boot, .NET, or Rails) may take longer. Choose technologies aligned with hiring capacity and budget bands—startup MVPs need rapid hires; enterprise projects may prioritize long-term support.
What practical framework helps choose the right tech stack for a project?
Match project type, complexity, security needs, and time-to-market goals. Prioritize community support, maintenance costs, and integration needs. For example: use React for fast UI development, choose PostgreSQL or Supabase for transactional reliability, and pick a backend that aligns with team skill and compliance requirements.


