We Build Systems That Help Your Business
Operate, Sell, and Scale.
You focus on running your business. We design, build, and deploy the technology behind it—from high‑performing websites and business systems to fully custom platforms tailored to your needs.
Collins .W. Kahihu
Founder & Lead Engineer
"We don’t just build features. We design systems that handle real users, real growth, and real business needs."
— Olive Tree Marco Engineering Philosophy
Get more customers
Websites and digital experiences designed to attract, build trust, and convert visitors into real business.
Run your business better
POS systems, procurement platforms, and internal tools that streamline operations and give you control.
Build a custom platform
Tailor-made software designed around your business or idea—from concept to deployment.
What We Build
🌐 Websites That Convert
Fast, reliable websites built to represent your business and generate real inquiries.
⚙️ Business Systems That Work
From POS to procurement platforms—we design systems that reduce manual work and improve efficiency.
🚀 Custom Platforms
We build scalable, tailored software designed for real‑world business use.
How We Build
- We architect solutions based on your business needs
- We build for performance, reliability, and scalability
- We choose the right technologies for the problem—not trends
- We focus on practical execution, not unnecessary complexity
Featured Product
Crosxpost Studio
A smart SaaS tool designed to simplify and streamline your content distribution workflow.
Learn MoreWebsite Performance Check
Test how your website performs and identify areas for improvement.
Built using the same principles we apply when designing high‑performance systems.
What Clients Say
Collins W. Kahihu
Founder & Software Engineer
We build systems that solve real business problems—focusing on performance, structure, and long-term usability.
Official Address
Braidwood House, 2nd floor Room 202,
Tom Mboya Street, P.O. Box 100070–00102,
Jamia, Nairobi, Kenya
+254 713 557 049
omarcotechnologies@gmail.com
Business Profile
- Registration: Fully registered, tax compliant
- Specializations: General Office Supplies, Uniforms, IT Accessories, F&B, Software Development
- Parent domain: colwak.com (official company hub)
- Leadership: Collins .W. Kahihu, Founder & Software Engineer
Professional Services & Pricing
Tailored solutions for Kenyan, African, and global businesses ready to operate, sell, and scale effectively.
*All prices are estimates based on scope and complexity.
Get more customers
Websites and digital experiences that attract, build trust, and convert visitors into real business.
Run your business better
Systems that streamline operations, track performance, and give you full control.
Build a custom platform
Tailored software solutions for businesses and founders with unique needs.
💰 Get Customers Online
Custom Business Websites
A fast, conversion-focused website that represents your business professionally and generates real inquiries.
- Up to 10 pages
- Mobile & cross-browser optimized
- Contact forms & maps
- SEO-ready structure
- 3 months support
Personal Portfolios
A clean, modern portfolio that showcases your work and helps you attract new clients with confidence.
- Custom design & branding
- Gallery / lightbox
- Social media integration
- Easy content updates
WordPress & Plugin Development
Flexible WordPress solutions enhanced with custom features, improved performance, and ongoing support.
- Custom themes / child themes
- Plugin integration & development
- Speed optimization
- Ongoing support
⚙️ Run Your Business with Systems
Retail & Restaurant POS
A complete sales and inventory system that gives you real-time visibility, reduces losses, and simplifies daily operations.
- Inventory & stock tracking
- M-Pesa integration
- Employee & admin dashboards
- Sales reports & analytics
Procurement & Tender Systems
A structured platform to manage suppliers, automate tender processes, and reduce manual errors.
- Tender application portal
- Payment gateway (Pesapal)
- Admin & supplier roles
- Reporting & analytics
🚀 Build Custom Platforms
Custom Web Applications
Tailor-made systems designed around your specific business needs—whether it’s a booking system, CRM, or internal tool.
- Built with React, Laravel, or Django
- Database architecture & design
- API integrations
- Deployment & ongoing maintenance
Not sure what you need?
Whether you're starting from scratch, improving an existing system, or building something new; we’ll help you identify the right solution and execute it properly.
Write Once.Post Everywhere.
Transform one core idea into platform-perfect content across all your channels with AI assistance and human control. Plus, as a bonus, you can ensure each message is unique for each platform – it just depends on your use case.
Platform Performance
Built for Reddit compliance from day one
Crosxpost Studio enforces no identical crosx‑posting – each subreddit receives a tailored message. Users must manually confirm every post. We surface Reddit’s content policy and community rules. We are currently finalising our commercial API proposal.
Ready to simplify your content workflow?
Twitter & LinkedIn integration ready. Reddit coming soon.
No credit card required. We'll email you when Reddit is live.
Liquor Store POS System
Complete ERP for bottle shops, keg tracking, M‑Pesa integration, and multi‑role dashboards.
Harmonized Tech Stack
Next.js 14, Shadcn/ui
FastAPI (Python)
PostgreSQL + TimescaleDB
Redis
Daraja API + async client
WebSockets
Core Features
- Bottle fractions (1.0, 0.5, 0.25) & keg cup tracking
- Employee, Admin, Bookkeeper dashboards
- M‑Pesa reconciliation & internal ledger
- Real‑time sales / inventory updates
- Bonus & variance reports
Dashboard Previews
Today's sales
$1,251
Bottles
24
Full bottles
112
Opened
24
Selected Work
Each project represents real systems built for real users—designed to solve specific business problems and deliver measurable results.
Olive Tree Marco Corporate Site
Modern, responsive company website with interactive UI and smooth animations.
The Sample Select
Premium marketplace for music producers selling digital sample packs.
+11k monthly visits • 150% growth in 6 months
Larseng Procurement Portal
Structured platform for managing supplier applications and payments.
HILCO Task & Project Tracker
Lightweight internal tool for monitoring project progress and improving delivery.
Docstream Podcast Plugin
Custom plugin for podcast publishing with React frontend and WordPress backend.
Nairobi Artisans Market
Scalable platform connecting 200+ vendors with customers.
Fleet Manager Dashboard
Real-time tracking and logistics platform for optimizing fleet operations.
Crosxpost Engine (MVP → Product)
Evolved from social scheduling MVP into the core engine behind Crosxpost Studio.
Content Compliance Checker
NLP-powered system to analyze social media content for policy violations before publishing.
Facade Services Limited
Clean, responsive single-page company profile for a construction firm.
Built Across Industries
From marketplaces and logistics to internal systems and SaaS tools—our work reflects our ability to design and build solutions tailored to different business environments.
Full case studies and technical breakdowns available upon request.
Latest from Our Blog
Tips, case studies, and industry thoughts to help you grow digitally.
How We Helped a Local Store Increase Sales by 150%
Discover how a custom POS system transformed operations, reduced shrinkage, and boosted revenue for a Nairobi liquor store – with real numbers and client feedback.
5 Signs Your Website Is Driving Customers Away
Slow loading, confusing navigation, poor mobile experience — learn how to spot the red flags and fix them.
Read More
Introducing Crosxpost Studio: Why We Built It
The story behind our compliance‑first social media scheduler and what it means for creators.
Read MoreStay Updated
Get tech insights, case studies, and early access to new features.
Privacy Policy
Last updated: February 2026
Olive Tree Marco Technologies ("we", "our", "us") is committed to protecting your privacy. This policy explains how we collect, use, and safeguard your information when you visit our website or use Crosxpost Studio.
Information we collect
- Account information: When you sign up, we collect your name, email, and OAuth tokens (encrypted).
- Usage data: We may collect anonymous analytics to improve our services.
- Cookies: We use essential cookies for authentication.
How we use information
- To provide and maintain Crosxpost Studio.
- To communicate with you about updates and support.
- To comply with legal obligations.
We do not sell or rent your personal data. For Reddit API usage, we adhere strictly to Reddit’s content policy and API terms.
Data retention & security
We retain your information as long as your account is active. All data is encrypted in transit (TLS) and at rest. We implement role‑based access controls and regular security audits.
Children's privacy (minors)
Our services are not directed to individuals under the age of 13. If you are between 13 and 18, you may only use the service with parental consent. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal data, please contact us immediately.
Your rights (GDPR & other jurisdictions)
You may request access, correction, or deletion of your personal data by contacting us at legal@colwak.com. If you are in the EEA, you have the right to lodge a complaint with a supervisory authority.
Terms of Service
Last updated: February 2026
By using Crosxpost Studio and our website, you agree to these terms.
1. Use of service
You must be at least 18 years old, or if you are between 13 and 18, you must have parental consent. You are responsible for all content posted via your account. You agree not to use Crosxpost Studio for spam, harassment, or any violation of platform policies.
2. Compliance with Reddit’s rules
Crosxpost Studio enforces subreddit-specific customization and manual confirmation. You must still comply with each community’s rules. We reserve the right to suspend accounts that repeatedly post low-effort or prohibited content.
3. Intellectual property
We own the software, but you retain all rights to your content.
4. Limitation of liability
We provide the service “as is” and are not liable for any damages arising from its use.
5. Changes
We may update these terms. Continued use constitutes acceptance.
6. Indemnification
You agree to indemnify and hold Olive Tree Marco Technologies harmless from any claims arising out of your use of the service or violation of these terms.
7. Governing law
These terms are governed by the laws of the Republic of Kenya.
For questions, contact legal@colwak.com. Full legal documents available upon request.
We Build, Fix & Scale Digital Systems
From idea to execution — we design, build, and optimize products that work for real businesses.
Build
Turn ideas into production-ready digital products from MVP to full systems.
Systemize
Design systems that automate and scale your operations — internal dashboards, APIs, workflows.
Optimize
Fix underperforming products for speed, scale, and conversion — we rebuild properly.
Partner
Act as your technical partner — product strategy, architecture, ongoing leadership.
Visit or Write
Braidwood House, 2nd floor Room 202,
Tom Mboya Street, Jamia, Nairobi
+254 713 557 049
omarcotechnologies@gmail.com
colwak.com
100+
B2B clients since 2018
15+
Custom product builds
98%
Client satisfaction
Start a Project
Tell us about your idea, challenge, or system that needs fixing.
Ideas are cheap. Execution is everything.
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We’ll analyse your website and online presence, then send you a personalised report with actionable recommendations.
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