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Timor-Leste rapidly scaled molecular testing for SARS-CoV-2 from minimal pre-pandemic capacity to a nation-wide network reaching all referral hospital. The National Health Laboratory (NHL) in Dili—supported by the Ministry of Health (MoH), WHO, and partnership development stood up RT-PCR on existing and newly procured platforms, extended testing via GeneXpert in referral and municipal laboratories, and implemented data systems and workforce surge strategies. Despite achievements, over 200,000 molecular tests during COVID-19 periods; peak national capacity around 500-700 tests/day, constraints in human resources, procurement, logistics, and quality management were persistent. Consolidating gains now offers opportunities to institutionalize multiplex respiratory testing, integrate middleware/LIMS for connectivity, and extend molecular diagnostics to other priority pathogens.