There are people out there doing what you've described, but it doesn't (and never did) get headlines because most headlines are paid for.
We have an open source library of ready-to-use modules that can be forked/tweaked or used as is.
It's called Anymod https://anymod.com. Hoping we can become something useful for developers.
Pieces of paper represent programs and UIs, and you can grab a wireless keyboard and place it in front of anything to inspect and modify it with the help of projectors: https://dynamicland.org
But there are still a number of places in the world (and indeed within the US and Canada) that lack real broadband Internet. Or have truly terrible shitty noncompetitive options. It's capital intensive and requires a team encompassing the "full stack" of network engineering skill sets. If you're unhappy with Comcast type huge shitty unethical ISPs, build your own. Make a principled commitment to not "selling out", network neutrality, and high quality attentive customer service and no-nonsense billing.
There are plenty of challenges out there if you seek them out.
Those always were around. In the days of yore there was IBM using FUD everywhere and trying to monopolize the PC through proprietary technologies, AT&T trying to shut down Unix as free software, Microsoft's monopolistic practices, etc. But at the same time a lot of people worked on free software and much more to make the world a better place, and they succeeded.
What the histories leave out, what they can't convey, is the uncertainty of being one person or a small team taking on megacorp, of the experience of trying help a world where most people don't understand the problem and many who do understand still don't care. History can't convey not knowing if the story will end in a wasted career and never even being noticed, much less forgotten, or in being Linus or RMS or Graydon Hoare. That's all just normal in any project of social change. In another domain, IIRC, MLK's popularity was underwater even after the Voting Rights Act passed; can you imagine what he faced when he started - a small group, a politically oppressed minority (thus limiting their ability to get anything done), a barely educated constituency (due to the discrimination), taking on a much larger majority and centuries of Southern (and Northern) tradition.
So both the General Magic and the Newton Messagepad sadly lost out to the inferior-in-nearly-aspect Palm. (curiously, Palm got its start writing an alternative alphabet interpreter for the Newton. So if not for Newton, Palm would have never been born, and would not have defeated Apple.)
Palm devices shipped out of the box with a docking station and ability to sync calendar/data with almost any Windows 98 or NT4/2000 PC.
But mostly it was the price tag. Palm Pilots really did almost everything a Newton could do at half the price or less. The Outlook sync feature made sure they had a place in business as well.
worse is better https://www.jwz.org/doc/worse-is-better.html
x86 was worse than RISC, Linux worse than BSD, Windows worse than MacOS, etc
Palm got the the things right that mattered to adoption (price, simplicity, data syncing) even if you think Newtown was technically superior. Focusing on technical superiority is a common trap.
https://web.archive.org/web/20180322163944/https://www.jwz.o...
As Martin Luther King once said: "it's always the right time, to do the right thing", and as some other commentators have stated, many 'good' people are trying to improve our world - it's just that the tech bros often have better PR teams and that all important 'network scale'.
Hang in there, the dream is definitely still alive :)
At the day job I build a tool/platform/thing for high school students to get instant help with math homework.
We're out there! We just don't make it to the top of HN anymore.