When Melbourne photographer Mark Fitzgerald’s three-year-old daughter was diagnosed with coeliac disease and type 1 diabetes within three months, his family’s life changed overnight. Clinical appointments raised a deceptively simple question: “How has she been going?” Answering it meant piecing together blood-glucose readings, meals, carbohydrate intake, insulin, physical activity, sleep, weather and the many other factors that can affect glucose levels. Mark couldn’t find one tool that brought all of that context together—so he began building one. In this episode of Founders and Funders Australia, Ray sits down with Mark to discuss the journey from country Victoria and early computers to music, commercial photography, AI-assisted software development and In Range: a diabetes-management app created first for his own family. Mark explains how In Range combines continuous glucose monitor data with meal and carbohydrate logging, barcode scanning, activity and local weather information. It also includes caregiver handovers, family-specific care policies, overnight crisis guidance and a separate clinical interface designed to give qualified healthcare professionals more detailed context. What began as a personal solution is now approaching its next stage. Mark is preparing to take In Range beyond his household—but launching software connected to people’s health brings serious questions around safety, privacy, regulation and responsibility. At the time of recording, In Range was not yet publicly available. Growing up near Shepparton and discovering computers through Atari, DOS and early PC gamingWhy Mark left computer systems engineering for music and photographyWhat ten years of drumming and touring taught him about obsession and masteryMoving from wedding photography into fashion, advertising and corporate workWhy making people feel comfortable is the foundation of a strong portraitBuilding a photography business through referrals, coffee meetings and genuine relationshipsWhy creatives must keep learning as technology changesUsing AI to build quoting and gallery-delivery tools for his photography businessHis daughter’s diagnoses of coeliac disease and type 1 diabetesThe information gap Mark encountered during clinical appointmentsWhy glucose readings need context from food, activity, sleep, weather and other factorsHow In Range logs meals, carbohydrates, insulin and CGM dataBarcode scanning and the limitations of estimating carbohydrates from food photographsSupporting parents, kindergarten staff and other temporary caregiversThe app’s crisis-mode and overnight-alert featuresCreating different experiences for patients, carers and cliniciansWhy In Range cannot diagnose, prescribe or recommend insulin dosesThe privacy, regulatory and moral responsibilities involved in health technologyWhy Mark is reluctant to launch aloneFinding a niche that solves a meaningful problem for a specific communityThe value of obsession and the thousands of hours behind apparent overnight progressMark is preparing In Range for a carefully managed pilot and would like to connect with: An endocrinologist who can help validate what information should be presented to users and cliniciansA lawyer with relevant health technology, medical-device, privacy or software experienceAn experienced diabetes, healthcare or health-technology industry partnerApproximately 20 people or families interested in participating in an initial beta-testing groupPeople who can help Mark navigate an ethical, safe and responsible pathway to launchIf you can help—or can introduce Mark to someone suitable—contact him at mark@markfitzgerald.com.au