Stuff I’m building, learning, and thinking about.https://pgicharu.dev/https://pgicharu.dev/projects/tufariji/https://pgicharu.dev/projects/tufariji/A mobile-first memorial and funeral coordination platform built for Kenyan families.Thu, 12 Mar 2026 00:00:00 GMThttps://pgicharu.dev/projects/changa/https://pgicharu.dev/projects/changa/Local-first PWA that turns manual WhatsApp fundraiser bookkeeping into a fast mobile workflow for treasurers.Mon, 02 Mar 2026 00:00:00 GMThttps://pgicharu.dev/projects/gym-tracker/https://pgicharu.dev/projects/gym-tracker/An installable workout-tracking PWA that turns weekly coach PDFs into a fast, offline-friendly gym companion.Sun, 22 Feb 2026 00:00:00 GMThttps://pgicharu.dev/blog/2025/2025-developer-to-cto-mindset-shifts/developer-to-cto-mindset-shifts/https://pgicharu.dev/blog/2025/2025-developer-to-cto-mindset-shifts/developer-to-cto-mindset-shifts/Reflections on the five-year journey from senior developer to CTO, and the fundamental mental shifts required to lead a healthtech organization.Wed, 15 Jan 2025 00:00:00 GMThttps://pgicharu.dev/blog/2024/2024-lessons-from-60000-patient-encounters/lessons-from-60000-patient-encounters/https://pgicharu.dev/blog/2024/2024-lessons-from-60000-patient-encounters/lessons-from-60000-patient-encounters/Six critical lessons on patient behavior, clinician needs, and why reliability beats flashy features in healthtech.Fri, 20 Sep 2024 00:00:00 GMThttps://pgicharu.dev/blog/2024/2024-managing-technical-debt-healthcare/managing-technical-debt-healthcare/https://pgicharu.dev/blog/2024/2024-managing-technical-debt-healthcare/managing-technical-debt-healthcare/How to manage architectural shortcuts and legacy code in healthcare systems without compromising patient safety.Wed, 15 May 2024 00:00:00 GMThttps://pgicharu.dev/blog/2024/2024-practical-ai-african-healthtech/practical-ai-african-healthtech/https://pgicharu.dev/blog/2024/2024-practical-ai-african-healthtech/practical-ai-african-healthtech/A pragmatic look at AI applications that drive real results in African healthcare settings, from no-show predictions to administrative automation.Sat, 10 Feb 2024 00:00:00 GMThttps://pgicharu.dev/blog/2023/2023-leading-small-healthtech-engineering-teams/https://pgicharu.dev/blog/2023/2023-leading-small-healthtech-engineering-teams/Lessons on scaling a platform for 60,000+ patients with a lean team of under 10 engineers.Sun, 05 Nov 2023 00:00:00 GMThttps://pgicharu.dev/blog/2023/2023-infrastructure-vs-features-healthtech/https://pgicharu.dev/blog/2023/2023-infrastructure-vs-features-healthtech/Why invisible infrastructure is the true foundation for scaling healthcare features safely and reliably.Sat, 22 Jul 2023 00:00:00 GMThttps://pgicharu.dev/blog/2023/2023-actionable-healthcare-data-insights/https://pgicharu.dev/blog/2023/2023-actionable-healthcare-data-insights/Why healthcare dashboards often fail and how to restructure data to drive proactive clinic management.Fri, 10 Mar 2023 00:00:00 GMThttps://pgicharu.dev/blog/2022/2022-why-healthtech-products-fail-clinics/https://pgicharu.dev/blog/2022/2022-why-healthtech-products-fail-clinics/Avoiding common pitfalls in healthtech design by prioritizing clinical reality over engineering assumptions.Fri, 14 Oct 2022 00:00:00 GMThttps://pgicharu.dev/blog/2022/2022-hl7-fhir-african-health-startups/https://pgicharu.dev/blog/2022/2022-hl7-fhir-african-health-startups/A pragmatic guide to navigating health data interoperability standards in the African startup ecosystem.Fri, 20 May 2022 00:00:00 GMThttps://pgicharu.dev/blog/2021/2021-reducing-clinician-burnout-health-data/https://pgicharu.dev/blog/2021/2021-reducing-clinician-burnout-health-data/Principles for designing EHR systems that prioritize clinician well-being while capturing high-quality health data.Mon, 22 Nov 2021 00:00:00 GMThttps://pgicharu.dev/blog/2021/2021-event-driven-architecture-healthcare-logistics/https://pgicharu.dev/blog/2021/2021-event-driven-architecture-healthcare-logistics/How TIBU Health moved from tightly coupled services to a resilient event-driven architecture to manage complex patient care workflows.Tue, 15 Jun 2021 00:00:00 GMThttps://pgicharu.dev/blog/2020/2020-designing-patient-journeys-clinic-workflows/https://pgicharu.dev/blog/2020/2020-designing-patient-journeys-clinic-workflows/Insights from my first year as CTO at TIBU Health on translating messy clinical realities into functional healthcare software.Wed, 12 Aug 2020 00:00:00 GMThttps://pgicharu.dev/blog/2019/2019-telecoms-thinking-mobile-app-design/https://pgicharu.dev/blog/2019/2019-telecoms-thinking-mobile-app-design/How my MSc in Mobile Telecommunications changed my approach to building Android apps for unreliable networks.Tue, 10 Dec 2019 00:00:00 GMThttps://pgicharu.dev/blog/2019/2019-essential-kotlin-extensions-android/https://pgicharu.dev/blog/2019/2019-essential-kotlin-extensions-android/A collection of essential Kotlin extension functions for cleaner, more readable Android code.Fri, 15 Nov 2019 00:00:00 GMThttps://pgicharu.dev/blog/2018/2018-why-i-moved-from-java-to-kotlin/https://pgicharu.dev/blog/2018/2018-why-i-moved-from-java-to-kotlin/A look at how switching to Kotlin reduced boilerplate and eliminated null pointer exceptions in my Android codebase.Mon, 08 Oct 2018 00:00:00 GMThttps://pgicharu.dev/blog/2018/2018-designing-offline-first-android-apps/https://pgicharu.dev/blog/2018/2018-designing-offline-first-android-apps/How to build resilient Android applications using Room and WorkManager to handle inconsistent mobile data in Kenya.Sat, 04 Aug 2018 00:00:00 GMThttps://pgicharu.dev/blog/2018/2018-building-rest-apis-laravel-postgresql/https://pgicharu.dev/blog/2018/2018-building-rest-apis-laravel-postgresql/A guide to building scalable, mobile-optimized backends using Laravel and PostgreSQL based on my experience at iLab Africa.Fri, 13 Apr 2018 00:00:00 GMThttps://pgicharu.dev/blog/2018/2018-mobile-app-trends-for-developers/https://pgicharu.dev/blog/2018/2018-mobile-app-trends-for-developers/A pragmatic developer's view on what actually matters this year, including PWAs, M-Pesa integration, and serverless backends.Sun, 04 Feb 2018 00:00:00 GMT