mbzi

Joined 9 years ago

Karma
70
Submissions
25
Member since
Aug 30
3 x CTO, technical advisor to PE and VC.
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Recent submissions

Comment · 5 years ago
I like you are having success here, and the key item "natural communication lines" which I very much agree with. We will always deliver conway's law.

I am curious on 1) the size of your teams, and 2) your opinion on how this would work with E2E product domain based teams (mixed skill sets) vs skills based teams e.g. User engagement team (front and backend devs covering sign on, emails, etc) vs Backend engineers (maintain all backend systems, etc).

Comment · 5 years ago
Apple forbids other web engines explicitly (or only allows the WebKit respectively) in § 2.5.6 of App Store Review Guidelines: https://developer.apple.com/app-store/review/guidelines/

2.5.6 Apps that browse the web must use the appropriate WebKit framework and WebKit Javascript.

This means they cannot add a new API standard on iOS. This is why WebRTC was hamstrung until November last year.

https://bugs.webkit.org/show_bug.cgi?id=208667 https://bugs.chromium.org/p/chromium/issues/detail?id=752458

If the browser uses WKWebView or UIWebView, you're right, you can "mock" an API by injecting JS, and through tunnelling you can recreate native functionality. Not if its SFSafariViewController. As someone who has done a lot of fiddling with JS to Obj-C/Java tunnelling for iOS and Android in production, it can be prone to errors and/or get your app rejected. Browser makers probably do not see the commercial value in going down this bespoke path.

Comment · 5 years ago
Comment · 5 years ago
Looks fantastic, shouldn't be 'too difficult' to port to web via WebAssembly. There goes my weekend! Keep up the great work :)
Comment · 5 years ago
Firstly great app, I enjoyed using this on my baby daughter crawling around the living room! Keep up the good work :)

If you were to implement a camera picker, take a gander at: https://webrtc.github.io/samples/src/content/devices/input-o...

iOS and Android don't have the same camera picker like Chrome on Windows 10, even then it is difficult to always override. I would recommend using enumerateDevices to allow you to pass the deviceId when firing getUserMedia. Not a lot of work. Implemented this a few times for cross-browser WebRTC experiences. A pro-tip is use getUserMedia with audio and video constraints set to true. This forces the permissions pop up to appear. You can kill the feed once the user has accepted the permissions, then ask them what device they want to use, and then fire getUserMedia with the correct deviceId. This is a [nice?] hack as some browsers don't allow you to use enumeratedDevices until after getUserMedia has asked you for the permissions. e.g. Safari...

https://developer.mozilla.org/en-US/docs/Web/API/MediaDevice...

Comment · 5 years ago
Good question, I would say neither, this responsibility is for the browser and native apps you use which display web content (e.g. Chrome, Firefox, Facebook, etc). Not apple or the web app developer. At most OP should include https://www.npmjs.com/package/webrtc-adapter as part of their polyfills to aid cross-browser support/cater for WebRTC nuances.

WebRTC has been in iOS Safari for quite a while. However, all other apps and browsers were limited to what was in offer within WKWebView. From iOS 14.3 beta 1 onwards WKWebView gained getUserMedia/WebRTC features. It is now up to the browser and apps you use to make sure they have implemented their web views correctly and allow the correct permissions for WebRTC to work.

https://stackoverflow.com/questions/48775154/notreadableerro... https://bugs.webkit.org/show_bug.cgi?id=208667 https://bugs.chromium.org/p/chromium/issues/detail?id=752458

Comment · 6 years ago
Used to live around the corner. Nice owner, good food and a great beer selection. I now [Ironically?] live in the states and miss that pub quite a lot.
Comment · 6 years ago
Some use cases I have personally worked on:

To allow surgeons to interact with my software within an operating room without the need for an assistant (to remain sterile).

Interactive retail displays outside the store. Users can interact with augmented reality displays and visualize themselves wearing the store products and/or to play a game to win prizes, etc.

Problems encountered:

Hardware adequate for long experiences e.g. Microsoft Life camera freezes after a few hours. Finding a device which can run 24/7 is a problem. Then once you found a good device you need to understand the risk of it being pulled from the market e.g. Primesense, Kinect, Intel RealSense (pulled and replaced by a new product and SDK, etc).

If a depth camera is used the type of bulbs to sunlight can interfere with tracking accuracy. If RGB is solely used then I am curious to see how well it works with various skin-tone in different lighting conditions and complicated backgrounds.

The "heavy arm/hand" problem. Try lifting your hand for 5 minutes and not putting it down. Users can be fatigued very quickly with a gesture based UX. Most products are not designed for this interaction.

In terms of Zesture:

The website is clean, to the point, great starting point. However I would like to:

- See an Enterprise license for long term support - Know how well it benchmarks against other SDKs/hardware solutions which achieve the same effect - Patents, does this infringe on other proprietary innovations? (do you have patent troll insurance?) - Guidelines for the best experience, e.g. distance from the camera if you were to use gestures to control a presentation - Roadmap, where are you going next?(FYI I am looking for a new way of hand based gestures which can be deployed via WebRTC and WebAssembly for interactive web based experiences :) )

Keep up the good work, looks promising!

Comment · 6 years ago
This is good advice. I would also extend this and write out an FAQ / stackexchange for the next engineer at your company who has to go through the same learning curve.
Comment · 6 years ago
Nice suggestion, we do this for certain deployments. Amazing what magic you can do in Janus, etc, :)
Comment · 6 years ago
Comment · 6 years ago
There are too many non constructive negative comments. Not many web engineers understand how the dom really works, or how to make a library. I applaud this tech demo.

Would I use this in production? No. But the author is not asking for that. It takes a lot of guts to create something and show it to this community. I really enjoyed looking at how the code progressed, how the author tackled a difficult subject, and their replies to constructive comments. Keep it up!

Comment · 6 years ago
When dealing with Health or Military systems installing or updating a native application could result in months of delays (e.g. quarterly OS image update cycles). However running within Chrome, Firefox, and other typical software preinstalled, this becomes <days for implementation.

Without WebAssembly I wouldn't have been able to ship 2 products pro-bono within intensive care units and operating theatres directly helping with COVID.

I understand your dislike towards WebAssembly (albeit Web stack trends / flavour of the month esque development). I am not the largest fan of modern web development. Nevertheless love for WebAssembly is not due to developer productivity. After shipping 20+ WebAssembly products (alongside native counterparts) I am yet to meet an Engineer who enjoyed the WebAssembly/Emscripten/Blazor pipeline. However what WebAssembly has achieved for me is: Do people use your app? and within certain markets it allowed me to grow, do good, and say yes. This is the only real reason why someone should go down this route.

Comment · 6 years ago
Thanks, much appreciated!

I think WebAssembly is more used than it appears, just difficult to see/tell.

A few years ago I actually tried integrating AR via WebAssembly with Amazon. We couldn't get the approval due to poor performance on Amazon fire devices (which have low end hardware). It is a shame but it is what it is.

What is disappointing/annoying is - as a CTO - it is near impossible to hire someone with WebAssembly skills. It requires an extra curious Engineer with a passion for native and web. Training is always important for a team but when going down the WebAssembly route you need to extra focused and invest more than what a typical Engineer would be allocated (E.g. Increase training from 1 day a week to 2-3). I suppose this may put people off?

Comment · 6 years ago
I feel like I am looking in a mirror!

Ten years ago I did the same but in Java and JOGL (before Apple banned OpenGL graphics within Java Applets embedded within a webpage). Was used for AR Watch try on within https://www.watchwarehouse.com and Ebay. The pain of Flash and Applets still wake me up at night.

I'm also building something very similar but with the ability for custom codecs (https://www.v-nova.com/ is very good). Probably the same issues too! Could I know more about your solution?

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