Various TeX templates, including slides and posters.
Simple light beamer template Aspect ratio 16:9
Also available in the Overleaf gallery: https://www.overleaf.com/latex/templates/beamer-theme-template-quito-light/pyqxchbsknvr
Simple dark beamer template Aspect ratio 16:9
Also available in the Overleaf gallery: https://www.overleaf.com/latex/templates/beamer-theme-template-quito-dark/gvyttycbmxrr
Simple poster, size A0.
Also available in the Overleaf gallery: https://www.overleaf.com/latex/templates/a-very-simple-poster/xxqddqddwmfx
Simple poster, size A0
A simple, assymetric, two-column CV. You can change the theme colors in theme setup.tex file
Also available in the Overleaf gallery: https://www.overleaf.com/latex/templates/simple-cv/dwhjbyjdkcch
A simple, colorful timeline.
Also available in the Overleaf gallery: https://www.overleaf.com/latex/templates/timeline/fswhyzqjhhbc