Ask HN: What “missing” technical solution(s) do you wish existed?

71 points by webmaven ↗ HN
This could be just about anything, from "project A but written in language B", "an API or library for real world activity C", "a unified solution for both D and E", all the way to "An open source version of proprietary solution Z", etc.

Go wild, dream big. You never know, someone might respond with a link to such a project that already exists... or decide to start one!

218 comments

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1 device with multiple Airplay points that can output to multiple amplified speakers. Price would determine how many Airplay points / speakers exist (1 device for 4 speakers, 1 device for 8, etc...) Bonus points if the device has the amplifiers built into it.

In my house, I have multiple Airport Expresses for the sole purpose of connecting them to different channels on an amplifier to to stream different audio sources to different parts of the house. So 1 point exists for the speakers in the kitchen; 1 for the speakers in the dining room; 1 for the patio, etc...

So the wife could be prepping dinner in the kitchen, listening to 1 music stream and I can be on the patio prepping the brick pizza oven listening to another stream (we have vastly different music tastes)

So I've always wanted 1 device with x endpoints that I could configure each and connect to specific speakers.

Then again, with the routers being put on "hold" - this may be moot and I might have to switch to a Creston or something else.

Couldn't this be simplified by just having an airport express + a set of powered speakers (or appletv if there is a tv too) in each room/location?
Source-specific IP Multicast support on the open internet, which probably needs some serious magic to make it feasible on core routers, if it is solvable at all.

Some shabby server in someone's basement could stream data to millions. CDNs would no longer be needed.

That sounds a lot like taking the D out of DDoS.

Isn't this how multicast IP television works anyways? With IGMP and PIM?

There is a great fear of Multicast from many network engineers I talk to. This comes from at its core, it being too easy to create cycles. At the internet scale the potential for cycles would be even higher, b/c the TTL needed would have to be on the order of ~20-30 hops, and many engineers will just set this number too high.

Now I don't have experience with Source-specific Multicast, which is supposed to resolve the cycle problem, but I think there remains a lot of fear of Multicast in the industry.

Can anyone else comment on cycle issues?

Also, in terms of scaling, Multicast requires of copy of the packet on the router to every port which is registered as a listener to a Multicast address, this will increase load on the larger routers.

About scalability, a possible compromise might be making some distance-based limitations. I.e. limit subscriptions per prefix or adjust packet drop rates.

That way regional SSM can still be useful and local islands (which whould hopefully grow over time) could be bridged by unicast links or - if they have overlap - by leapfrogging.

Even at the ISP level there would be still be use-cases for SSM.

Multicast on top of MPLS isn't really a thing with respect to the backbone routers.
Multicast on top of MPLS isn't really a thing with respect to the backbone routers.
You know how the iPod is now this tiny little clip on chip with earphones? I want a phone like that. No app, no "smart this or that" - just a phone, with an contact list. The thing can to voice calls and SMS ONLY. It's a real cellular phone, but without all the crap, and a monthly use cost of under $20. Make that, and you'll see a revolution.
like a burner t-mobile flip phone from Walgreens?
That's what I was thinking. Maybe they're looking for smaller, like that awesome 'gag' flip-phone in Zoolander.
What kind of revolution are you expecting? Loads of people already have smartphones and I don't see them switching, and you can already get a flip phone for < $10.
This point is a Trump/Brexit type phone - none of the built up cruft and corruption of a "smart phone". If is just a phone. The "revolution" will be the massive loss of revenue the popularity of such a device would bring, which consumers could use as a purchase weapon to say "no more spy hardware!"
Why would anyone want this?

If you just want cheap service, you can already get that with a full-fledged smartphone with data. I pay less than $20/month with Ting, and I'm sure you can get similar deals with other MVNOs. You can't constantly stream YouTube videos all month long for that price though; you get that kind of bill by not using your phone that much, and doing a lot of your talking over WiFi using VoIP apps.

And you can get "burner" flip-phones for next to nothing anyway which will do exactly what you want here. If people really wanted stripped-down phones that much, those flip-phones would be extremely popular, but they're just not. There's no "revolution" to be had here.

I want to slot my phone into a dock connected to three high resolution monitors and a keyboard/mouse and be able to do development work.

Essentially, when it's in my hand it's in Phone Mode, when it's in the dock it's in Desktop PC mode.

We are getting there with tablets. You can do this with the Surface for example thanks to Display Link technology. I just want the device to be phone sized, around 5.5" or so with a good battery life when operating as a phone, a decent processor, a decent amount of Ram (8GB at least), and about 500GB of SSD storage.

With a Surface or equivalent tablet, you still need to carry around a bag with you to carry it in which is a pain. If that could be small enough to fit in your pocket that would be ideal!

I don't want VC funding, I want Microsoft to go in this direction. Their phone OS was great, I generally like their tablets, and most desktop software works already on Windows. If anyone from Microsoft is listening I want them to do this.
Yep, I am genuinely excited to see where Microsoft goes with this.
And let us install whatever OS we want on that hw.
Windows phones already do this, less development tools. Its cool because e.g. Word mobile has the desktop and phone UI in the same package and presents itself appropriately.

I would be surprised if, with more competitive Intel chips or x86 on ARM emulation (the latter of this is in the works afaik), this didn't happen sooner or later.

I don't understand. If you already are planning on using it with 3 monitors, what is the advantage of making it so portable? Why not just leave a slightly larger device where the monitors are and use the small device as storage / boot disk?
I guess.

I just like the idea that, if I am contracting in a couple of different places, have one of these setups in each one, rock up with my phone and boom!

I can see the appeal, but it still seems way easier just to put a cheap computer in eah location with equivalent compute power to a phone and carry around the SSD.
So, you want Ubuntu convergence?
Does the development environment have to be housed entirely on the phone itself? I ask because phones are too underpowered for most dev work. But, cloud technology is getting to the point where you can play AAA video games remotely with low latency using a modest computer as a client.

To extend on what you have, I think it would be really cool to have a phone app that brings up a remotely-hosted triple monitor dev environment when it's docked. The actual dev server could be anywhere and all you would need to access it, both at home and at work, is the phone. Kind of like a visual tmux.

edited: removed "which is why the many attempts at making desktop docks for phones have failed". There are many reasons they have failed, but not catering to devs probably isn't one of them. :)

Cloud is problematic because of cost of bandwidth and storage compared to local solutions. Until bandwidth is actually plentiful, uncapped, and cheap, I would rather have a local solution.
We're talking about a setup that's already plugged into the wall (triple monitors, keyboard, mouse). Just have the phone use Wifi.

I'll admit, having a self contained setup would be nicer, but that's not going to happen until batteries get much denser or phones get a lot more efficient.

I'm not sure why what I plug it into cannot have its own computing and storage power. There are wired caps on data too.

In fact, why the heck did Apple sell a display and an iMac? Why not insert a processor board (a blade) into the display to turn it into an iMac? Why was the Mac Pro anything more than a bunch of slots for blades?

I want to carry a small display, some storage, and computing power and be able to dock it with more storage, display, and computing power. I really think we need to examine the PC in the post-PC world. Given the prices, I'm fine with the cloud being my backup, not work environment.

Hmm. That's an interesting idea. How would the phone and the PC work together, though? I could see it work if they were all the same architecture. Then you're just adding more ram and cores.

Actually, the ram could be an issue. For example, say you're running a video editing program that's using 15gb of ram and you want to undock. You'd need some way of storing the state of the program and the ram its using when it's not docked. Either that or you'd be forced to shut it down completely.

Storage was a solved issue with the Newton Soups in the 90's, but other systems won. Memory could work the same way. Run the programs that required the high ram on the machine I docked to (using local dock storage replicating what I need from my phone) and when I unplug save the state. Perhaps back it up to network in that state in case I plug into a different dock next time.
They wouldn't need to be the same architecture, but use a common means of communicating for coordinating tasks.

There's some precedent in the design of the Transputer plus daughterboards. Borrowing from the latter to handle the heterogenous nature of phone/PC pairings.

Making it hot-swappable would, of course, be a challenge. Using physical mechanisms to hold the device means that boards/phones/whatevers could be ejected safely only once various conditions (state saving, rerouting of data, etc.) were met.

I was so excited when Microsoft demoed their Display Dock[1] for the Lumia 950s. It was the first step towards what you describe, a phone that becomes a desktop case when connected to the necessary peripherals.

I am also saddened that it seems like Microsoft is leaving mobile so it's unlikely we'll see a next iteration of this.

---

[1] https://www.microsoft.com/en/mobile/accessory/hd-500/

Microsoft might be leaving the mobile hardware business, but they're not the only ones making Windows Phone hardware. The HP Elite x3 just came out with this same feature. You can use the "Connect" app to pull up a remote desktop from any Win10 PC, or put it into a special dock that plugs into a normal keyboard mouse and monitor, or connect to a wireless monitor over Miracast.
Motorolla had this thing about 5 years ago: http://allthingsd.com/20110216/motorola-atrix-android-phone-...

It sounds like it didn't perform that great but with the more modern phone hardware and possibly some hardware in the dock to help with coprocessing (graphics card, more RAM, etc), you could build something quite useful. With the advent of USB Type C, docking stations for phones could definitely work. Gigabyte has even showed off a Thunderbolt/Type C external graphics card. I can definitely see souped up docking stations coming out within the next year or so. I could also see laptop versions of this coming out soon too for users that want a more portable version.

Reminds me of the Switch. I mean, that's gaming instead of dev, but it's a pretty similar concept.

I wonder if Nintendo will sell docks separately from the system for that purpose? I would hope so.

What you want is nearly possible: Intel's current generation of Compute Sticks (CS325 and CS525) are the size of a USB stick but have 2 cores, 4GB of RAM, and 64 GB of disk space. Granted, you can't use it on the go but it is ultra portable.
I had the same urge to carry a small, capable device to make phone call and do development work. I don't need much RAM or storage as long as it's enough to rotate to one project sandbox. The closest I found so far is: http://www.solu.co
A solution for game assets building.

Ideally it would be possible to build all assets (maps, models, textures, binaries) in a game from source files to the format that's distributed to people.

Unfortunately due to the build times for certain things like maps it's not feasible to rebuild everything before every release. Combined with the fact that the files are relatively large means that we can't store everything in one git repository.

I'd be very grateful if anyone knows a solution to this.

Could you set this up using gulp?
Yes, the problem is that due to the size most of it lives in different repositories so it's hard to know what version you're supposed to build and when something you depend on changes.
I assume you're talking about a large 3d game? Are you using Unity3D? Because if you are, then building game assets involves scripting the Unity3D client itself, which is a huge pain in the ass.

As for the git problem, why not use svn or perforce for the game assets? They handle binaries much better than git does.

Yes, it's a large 3d game made in the Source Engine. Luckily all tools are scriptable using bash.

Using svn for the game assets would work but to build them we would still need the shaders for example, which would live in the git repository alongside the rest of the code of the game. The resulting problem is that the asset git/svn should be triggered to rebuild when the code git changes. I'm looking for a tool that could help with that.

Thanks for the suggestion of perforce, I'll look at that.

> Luckily all tools are scriptable using bash.

Lucky you. :)

This isn't a simple problem and I don't know of any one size fits all solution for this. From what I could tell, every company comes up with its own asset pipeline that fits with their art, code, test and release processes.

I came up with a half assed solution myself back when I was still working in games. We had a separate build server just for assets. It ran a script every hour that pulled down both the code and art repos and watched for changes in certain folders. The shaders, 3d models and textures were linked via naming conventions. Through those naming conventions, the system always knew where to find all of the relevant pieces of any given individual 3d asset (in theory, anyway). It would then create the assets and check them into a separate SVN repo. This system worked ok, but it had a number of problems.

One problem was the naming conventions. The artists didn't much pay attention to file names, so any new asset they created would inevitably not get built because it didn't adhere to the conventions. We thought about replacing the naming conventions with a json file describing every 3d asset, where their shaders were, where their 3d models were, any special settings, where they should be saved, etc. but that would have required either a GUI application to help manage it all or a coder whose job was to manage the data files. The former would have taken time and the latter wasn't much better than what we were doing already. We still needed a coder whose job it was to fix asset build issues, which would pop up on a regular basis.

Another issue we had was build revisions. Game builds are complicated enough and we added the additional complexity of having to specify a branch name and version number for the assets used. It doesn't seem like it would be an issue, except when you have parallel art work going on in parallel branches along with parallel dev work going on in parallel branches things break. In retrospect, we should have put our foot down and said there is only one official asset branch and all dev builds will use the latest version of that branch, but we didn't.

Sorry for the essay, but I hope it was of some use to you. If you ever come up with a universal asset pipeline, sell that sucker! :)

Good to know other people also had the same problem. If I build it I'll certainly try selling it :)
Please look at https://www.plasticscm.com/version-control-for-games.html

We are. 2 man team and have our own hackeneyed way, some in house bunch of Python scripts to build our game assets. As we do this seriously as a hobby it works :). But now we are at a stage where the 2 games are coming along well and to go full hog, I would choose plastic.

It has integration with Unity and gutsync as well so migration is easy and with 7$ pm cloud plans for 5gb assets works for us.

Last when I had checked plastic it was out of reach out hobbyist / indie game devs. Hope this helps.

For unity, there was Unity Asset Server. Not sure if it's still available/supported.

More generically, I'd suggest you check out Mercurial with the Largefiles extension.

I want a successor to Haskell which follows the Elm mantra.
Can you elaborate on that? What do you mean by Elm mantra, and what do you think is blocking Haskell from succeeding in such that it needs a successor?
A programming language and toolset that could transpile to human readable code for just about every popular/mainstream language out there. The closest I've seen is Haxe. This would be great for sharing business logic between different platforms. Right now it's a fragmented mess of tools of various quality, many using regexes to get you only 90% there. For example pretty much everything can transpile very well to Javascript, so no problem there. But what if I want to write common code for iOS, Android, and the web? I've never figured out a good solution here besides contortions with C/C++ or Javascript that introduced more problems than it was worth. Either that or you have to go all-in with a big framework like Xamarin.

I think part of the problem is that there isn't a demand, and, if I may rant a little, the reason there isn't a demand is that most developers do not separate business logic and platform-specific stuff (rendering, I/O, etc.) in the first place, whether from lack of skill/experience (which everyone including me is guilty of early in their careers), or the fact that the framework/platform you're working in "discourages" it.

What is wrong with C++ for that? Works fine but maybe you have a specific case? What about C# or F#? That works fine as well for that purpose.
Having done a few years of cross-mobile C++, we get into opinion territory perhaps, but it was never a smooth experience for me. Apologies, but don't have time today to go into too much justification for my opinion. It can be the lesser evil (e.g. you have an existing greater-than 10K LoC C++ codebase that you don't feel like porting to both Java and Swift), but, let's say I want to write a few methods, a few hundred lines of business logic, to validate user input on all three platforms. Sure I can bring out the C++ hammer but I've found that decision comes with more tool-fatigue overhead than it's worth, especially on Android. And I don't know the C++->Javascript story that well, that may be smoothing out these days.

But even if all that worked smoothly, what if I want to move my logic to PHP as well? I know, now I'm getting crazy, but that's what the poster asked for :)

I wish that webcams on laptops had open-source hardware and also a hardware switch, which connects and disconnects the webcam from the laptop (and thanks to open source hardware you can be sure, that the switch has no "back-door"). Turining that switch off and on would be much easier than putting the duct tape off and on all the time.

Similar hardware switch would be useful for cameras and microphones in smartphones. You can never be sure, what your iOS, or Windows Phone, or some modified Android OS is actualy doing.

I really miss the laptops that had physical switches and the little sliding camera covers.

I'd even settle for a good case that just covers/muffles all of that.

especially microphones are a problem - you can always sticky tape the camera but you can not easily reversibly incapacitate the microphone
Especially since they don't even have to be surface mounted. It'd really be nice to be able to trust devices.
Sure you can. Think out of the box. A small speaker that sticks over the microphone opening and constantly plays a recording with two voices overlaid, one reading the Gettysburg address and the other reading the declaration of independence, constitution and amendments. You would have to be shouting to be intelligible over top of that.
Even better, think of how a microphone works. Its just a magnet and wire, right?

Could you place a small magnet over the mic to essentially lock it in place? no movement == nothing to record.

haskell on rails. the amazing static typing, binary compilation, etc of haskell, with a large ecosystem and monolith framework (like rails) behind it. haskell's community's focus on challenging, technical, scientific or mathematical problems has left normal web developers plainly not using it. but as our rails codebase has grown, it's hard to identify refactoring issues outside of obessive and overlapping unit tests.

i think Java actually comes closest to what I want here but unfortunately it's pretty hard to get past all the cruft the ecosystem has accrued over the years, plus it's java and marketing that as a company/developer sucks. also java is missing some expressiveness of haskells TS

I agree with you both that it would be amazing to see this in Haskell, and that Java (which I'm using full time now, after years of rails) is close-ish to what you want. I think this is what Scala is supposed to be, but I'm not sure it has realized that potential. You should look into Kotlin - you'll still miss Haskell's type system, but it's a good bit nicer than Java, and has a lot less history.
so what's `django` for java ?
Sorry, I really don't know, I'm not working at that sort of level at the moment.
did you switch to java for work reasons or because you wanted to?
For work reasons, but I was very happy to do it. Java would not have been my first choice, but I would have preferred it to another project using Rails, if those were the only options.
Yesod(http://www.yesodweb.com/) may be the web framework of your dreams. Yesod is great for building web apps and APIs. The biggest downside is the long compile time which leads to issues with cheap VPS instances since you need to compile on another machine since the instance doesn't have enough RAM.
I'm with you.

Haskell's Yesod framework is pretty feature competitive with rails/django, but it doesn't have 1/10th of the community.

I'd love to see Haskell gain wide popularity, but I don't think it's realistically going to happen. People generally travel the path of least resistance, and learning Haskell requires a lot of time and effort before you can be competitively productive with it. Individuals will choose to make that investment, but the masses won't unless they are forced.

I think the closest thing to what we want right now is node with typescript.

Something like cargo, but for C++ projects.
I have a really bad memory, but the part that affects me most is inability to remember conversations, even fairly recent ones (like the day before). Just zero recall of it ever happening. I'd love a way to quickly and unobtrusively log 'talked with Able and Baker about X Y and Z at such and such time and place'. Right now all I can think of is typing it into my phone or writing in a notepad.

But having such a solution, that I could review to improve recall, or search if necessary, would be lovely. Something quick and unobtrusive.

Kind of like the rememberance agents the early wearable computing people used? http://alumni.media.mit.edu/~rhodes/Papers/wear-ra.html
Something like that would be wonderful, yeah. Far as I can tell, it's not a real existing thing, right? Just an idea that there was a prototype of?
I was actually building something like that for myself.

Would you use it if you had to manually log it?

Yeah. Having to manually log to /some/ extent is actually my expectation; it just has to be simpler than typing out a whole log entry. I don't want to type out

"dec 02 2016 Hung out with Alex and Sammy, talked about Star Wars and whether Darth Maul or Qui-Gon would win in a fistfight, Sammy was backing Darth Maul and won the argument"

I don't have any ideas to improve that in any way, I don't know if it CAN be improved without some element of literal mind-reading, I just know that typing out the above is inadequate, it's too clunky, time-consuming, and conspicuous.

What about a Speech-to-text solution? Don't have to take the time to pull out your notebook or type on your phone's screen. Just tap a button on a headset or tell GNow to add a log entry, and speak the entry.

Communication; the next best thing to reading minds!

Interesting. I initially thought people might be comfortable typing like that and letting the app parse it all out. Thought it might be more natural than filling out a form.

What would you expect or be willing to time out instead?

I want a technology that reads and transmits blood, hormone and micro-biome information so that I can optimise nutrition, rest and training. I'd accept some form of implant but bonus points for the least invasive solution.
Medical lab technologiats are in an ideal place to start delivering this sort of information. If information and tissue/food/etc could be condensed on to small disposable chips, it could convey a lot of information.

Get sick in the stomach? Put a sample of your food on small chips before you eat and now we know that Chinese restaurant you ate at had high levels of E coli.

FPGAs in desktop/laptop computers. That would open all kinds of interesting possibilities.

Energy from nuclear fusion.

Highly dense electrical energy source. I want to see electric planes, phones that last for months, drones that stay in the air for days, etc.

Some kind of magical security system so we could return to native code instead of putting VMs on top of VMs. No idea if this one is feasible or how it might be achieved.

Cheaper IC foundries. I think there might be a market for old processes if they were substantially less expensive.

I don't think that some kind of awesome battery will give us phones that last for months. We'd either make the battery smaller (=cheaper) or crank up the processor.
You're probably right, but I guess it would be a possibility if we just replaced the battery in current phones.

For the other things I didn't necessarily have a battery in mind (doesn't change your point though).

Something that allowed people to step back and evaluate issues realistically, with correct (non-biased/non-skewed) data.

Unfortunately, the best we can do is use stats, studies, and reports. Nothing that's truly free of bias and 100% accurate.

I want a backend service I can call from my statically generated (i.e. jekyll) websites, to implement things like blog comments, analytics, etc.

A true cloud platform where I don't have to mess with admining and provisioning servers and containers. I want to just upload my code and pay for the cycles and bandwidth I use. Aws lambda for http basically.

disqus + google analytics?
I don't want disqus ads, nor google analytics referrer spam. Plus uBlock blocks ga, so it doesn't track the 'ghosts' ie technical users that are my target audience who use uBlock at a much larger percentage that the norm.

I'd like to just implement what I need.

Use goaccess on the server? Or cname ganalytics? I usually use g analytics for things that the server does not see and cross reference with goaccess. You cant make a new analytics without ending up in adblock lists anyway.

Also disqus works without ads. There ad system sucks badly anyway i was making 30 cents a day on a website that makes at least 30$ with adsense. Even thought disqus used up even more space.

I want more Sandstorm apps [0]. Specifically:

* an issue tracker (like Bugzilla)

* a money tracker (like Gnucash)

* a Q&A thing (like StackOverflow)

* a meeting organizer (tracking agendas and minutes)

[0] https://apps.sandstorm.io/

I wish there was a good javascript library to handle table (filtering, sorting, paging, ...). The best I found so far was datatable, but it is not perfect.
I am not very familiar with datatable; could you tell me more about its shortcomings?
IMHO I think Datatable doesn't have a nice and clean interface. For example, you can't just do table.AddRow({col1:'newCol1', col2 : 'newCol2'});

It is not always very clear on what plugin you should use for paging or sorting, column reordering. Then it become heavy to save a state using methods from different pluging.

So could be a lot simpler.

Still the best open source free js table on the market on my knowledge.

native Ruby support for: 1. amazon lambda 2. iOS apps 3. Android apps
Rubymotion covers 2 & 3.
A browser on Linux that just works and doesn't use up all my RAM.

Basically like Chromium a year ago? before they removed support for Hangouts and I had to switch to Chrome. Which crashes all the time, usually when using Hangouts.

What's broken about Hangouts? I just tried it in Chromium for Windows and it seems to work OK.
Late edit: This is a serious question. I can't find any information about Chromium dropping support for Hangouts. What happened?
Whats the problem with chrome? With a adblock (so not loading masses of ads) i dont have any issue with it. RAM is cheap these days as well.
A secure communication technology that is understandable (after reading some mans) and verifiable by an average user, without being infosec expert.

For now, there are so many unknowns in the equation, that users have no choice but to rely on vendor's authority, which means centralization.

Don't tell me it's theoretically impossible because it's possible in almost every other area.

How verifiable? You've seen the Underhanded C code competition? http://underhanded-c.org/
I'm not talking about code bugs and backdoors, which can always exist. I'm talking about protocols, encryption schemes and architectures. We need "comprehensible security", as opposed to incomprehensible, "NP-hard" and (soon) even "quantum-hard" security, accessible to only 0.1% of engineers, let alone users.

We still don't have digital signing technology that is verifiable as easily as paper signature and works peer-to peer, without some big corp/govt involved.

The challenge here is that it's super-easy to design protocols that the average person would consider 100% secure, even after reading some documentation. It's the same problem where anyone can create a lock/encryption that they don't know how to break, but there's always someone smarter or better versed in breaking it.

Subtle bugs don't look like problems until someone figures out an exploit against them.

How could the average user possibly verify any kind of modern technology? Programming VCRs is too hard for almost everybody, do you really expect these people to understand even the most basic explanation of how their privacy is protected?
You don't have to know how VCR works in every detail to use it and be sure it does what it should. You just look at the recording and see its quality.

On the other hand, using some security product, you can't tell if it's secure or it's snake oil, even if source code is open.

There aren't any adversaries trying their best to sneak a different X-Files episode on your recording, so you can reasonably assume that checking the quality of the recording is enough to verify that the show you wanted ended up on the tape.

With security software, the threat model is completely different.

The One Time Pad is secure and each step can in its operation can be validated by a layperson with pen+paper.
A way of using nuclear power to directly generate electricity, without going through a thermal cycle first. Similar to how photovoltaics work: instead of capturing heat from sunlight and going through a Carnot cycle engine to generate electricity, PV directly converts photons to electricity. Something like this with nuclear power would be revolutionary I think.
Swift support on android [I'm aware of kotlin et al, I'm the kind of guy who never got well with Java]
Rubymotion, dozens of js frameworks, Xamarin...

I dont really see why swift.

It doesnt have to be swift, it could be dart or something else, what I'm wishing its a language distinct from Java but with first tier support, ideally supported by google (We all know that JS/Xamarin/Rubimotion aren't there yet)
oh ok. Yeah i feel you on that. I doubt google cares tho. They seem to have rather a lot of crappy apps than a few proper ones.

I stopped doing android ads because i dont like Java enough to make more than a shitty app. So really with you on this

In the age of Single Page Applications that work almost without any backend I am missing a BaaS - Backend as a Service, that would handle users (sign up, sign in, forgot password), their data (save some user generated data, load user generated data) and payment processing at the same time. Right now you could try to combine Kinvey with Stripe or Cognito with PayPal but it is not easy at all.
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Firebase for everything but payments.
Can you talk about some of the challenges integrating kinvey and stripe? Seems like if you can setup a webhook on kinvey for stripe to call, that's about all you'd need?
userapp.io
that seems very promissing
so it seems userapp.io is not very active, is the project dead?
Full disclosure: IBM Cloud Identity Services is my current employer / project.

There is a concept of IDaaS - Identity as a Service that covers the first part of your request (sign up / identity lifecycle, authentication / single sign on, user self-service for password resets, etc...).

This is one such offering, there's a good overview of the features here: http://www-03.ibm.com/security/cloud/cloud-identity-service/

Also, I recommend looking into the IBM BlueMix cloud platform: https://console.ng.bluemix.net/catalog/

I think things are heading towards what you're describing, but picture it more as a catalog of skeleton backend apps built on top of pieces like you called out, as a starting point for different types of projects.

I want a simple bug tracker that's hosted entirely within my VCS repository, with a fully featured web interface.

There are a few abandoned projects like this, but they're all CLI-focused with view-only web at most. I want something better than just keeping a TODO file, not worse.

So basically bugseverywhere with a web ui ?