How do I.. just get started?

[jeffyjeffy1023]

I'm sorry for being kinda dumb but how? (specifically in a way that I could just make it a github site and test it via my phone, I'd rather not have to reboot into Windows 10 with its fucked up gpu drivers just to start doing more advanced things with my robots)
Like, the only JS I really know is from making webpages (mostly messing with WebTV and a bit of actual JS for neocities) and from Sphero EDU (of course)

How would I make a new project with this?
Also, is it possible to scan for multiple types of robot or ONLY just one kind?
Is it possible to connect to multiple robots, or even multiple of different types (i.e. BOLT and Mini) at once? (e.g. tilt mini to drive BOLT in that direction)

And is it possible to use this to get sensor data for something other than just a JS app? (i.e. small JS app handles Sphero connection and inputs, passes it to another program and passes any LED/other commands from said program back to Sphero)
Again, sorry for asking so many questions but it feels like this could be documented a bit more imo..
Also! How hard would it be to make just a simple little app that takes in HID input (either bluetooth or USB, from either my DualShock 4 or my Entire Nintendo Switch via a Hekate feature) to drive a Sphero?

also as stupid as this may be to ask: Is this at all compatible with sphero.js? (for BB-8/SPRK+/Ollie support)

I just wanna do more advanced things with my balls (as well as Detoo and my two Ollies) but the EDU app's JS is... not really that much more powerful than the blocks if I'm being honest.

ALSO!! I'd LOVE to see Force Band support for this. (the force band uses the BT prefix of "FB-", just like every other BT LE thing by sphero) Namely 1. for control over the 3 LEDs under the button and 2. to use it as an input device for things other than just the robots it works with (which sadly doesn't include BOLT.. works with Mini and all robots before it though, minus McQueen I'd assume)
also audio streaming to the speaker of an R2 droid (D2-, Q5-) would be nice to see but I can understand why it probably won't happen any time soon without custom FW.

EDIT: forgot to mention that I mainly use Windows 7. yes I know it's stupid to do so, but if nessicary I can reboot into Windows 10. it just hates me when I do that because windows 10 (specifically tiny10 because I'm not giving THAT much space to 10) refuses to work correctly with my GPU. No proper drivers? Horrible low rez. Proper drivers installed? Good rez that the monitor understands, but a black screen for... some reason???