Base UI Sketch Framework - Huge set of everything you need to design and prototype
SketchTool - Export pages & slices out of .sketch docs using CLI
INSTAD.IO - Automagically converts vector images into sketchy style
Sketch Extensions - An official collection of Sketch extensions & plugins
YayText! - ๐ข๐พ๐น๐ฎ๐ป ๐ฌ๐ธ๐ธ๐ต ๐พ๐ท๐ฒ๐ฌ๐ธ๐ญ๐ฎ ๐ฝ๐ฎ๐๐ฝ ๐ถ๐ช๐ฐ๐ฒ๐ฌ
Graphcool - The GraphQL backend for mobile & web developers to build better apps faster โก๏ธ