O₂ is originally a blog sharing technicial ideas launched in 2014. When I realise the future was rather dimming if I continued, then I decide to do some personal writing. However, I don't really insist.
Then here's the O₂ you see, some sort of mixture.
I'm really busy recently. Thus, the updating of this blog may not be that frequent. But I'll try my best to keep it online.
2020 is rather difficult for almost all of us. Hold on. Tomorrow continues.
You can contact AS O₂ at report [AT] airscr [DOT] com .