Holo - Mix holograms into videos & photos in Augmented Reality
Foundler - Online hackathon weekends. Attend every other week.
Membit - Pin photos to 3d space with augmented reality
HackHub - Host tech events and hackathons with ease 👨💻🛠
Multiverse - Immersive social environments supporting creative artists
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.