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I’m thinking about adding a daily challenge system (like a new “mission” each day) to help retention and keep kids coming back and moving.

If anyone has experience with designing short, repeatable daily loops for games — or ideas for simple movement-based mini-games — I’d love to hear your thoughts.


This has been the biggest game changer for me. People often think they need to push it hard and they quickly fatigue, burn out and hate going running. The trick is to do a 80% of your running sessions in zone 2 and 20% in high intensity to increase VO2 max. If you are at the start that means sometimes walking on hills and that is ok. There is a great book about this: https://www.amazon.com/80-20-Running-Stronger-Training/dp/04...


Hi fellow hackers!

For the past 18 months I've been building "Together", a new kind of app that allows children to play games and read stories with their grandparents in a video call. I originally developed it for my own daughters and their grandparents as a way for them to spend meaningful time together despite the distance.

Given the situation with COVID-19 and so many grandparents isolated and children potentially staying home I decided to make it completely free. Hopefully it becomes useful to some of you.

If you have a chance to try it please send me your feedback! Thanks and stay safe!


I've been one of the beta testers of Bugfender and so far I like it very much. It provides much more context when an issue happens instead of just getting the stack trace like Crashlytics does. One thing would be awesome to have in Bugfender is to automatically use the NSLog calls instead of having to change to BFLog all over an existing project. That way the only step to get it working would be to import the SDK and that's it.

If you are an iOS dev you should check it out, it may just save you many headaches when trying to debug a problem when it is not easy to replicate.


Is this something that Apple would approve?


Unlikely. It requires use of private API on the Mac, or direct USB communication with the device using an undocumented/private protocol.


That private API appears to be usbmux which iTunes uses to create tunnels to the device: http://www.theiphonewiki.com/wiki/index.php?title=Usbmux


Inquiring minds want to know, I would love to write a true DSLR tethered shooting app for IOS.


seconding this question.

My obvious need would be a version of "air display" that worked over usb, but when i looked into it 2 years ago talking over usb wasn't allowed except for certified products.


If you have a device that supports tethering, you can do that today. Turn on tethering, plug in the device, and they'll get a mini-LAN running over the USB connection.

If you have a WiFi-only device, or a cell plan that doesn't allow tethering, then this won't work, sadly.


thanks for the tip! I may start looking for an old ipad 3g then.

Also going to look and see if you can just enable usb tether with jailbreak.


Who cares?! You bought the device. It's yours not Apple's.


But you can't publish the app in the store, so few people can use it. Closed ecosystem :(


So distribute it some other way. If it's a great app and lots of people have a use for it, they will find a way to get it. You have the greatest distribution channel known to man at your disposal which NO ONE, not even the mighty Apple, truly controls: the internet.

Apple is just one company... which happens to spend an inordinate amount of money on marketing and an incredible amount of effort trying to control people through the lure of nice form factor and a graphical interface.

But there's more to computing than form factor and GUI. Lots more.


Hi there. Thanks for the feedback. We do have a FAQ for the service but I guess we need to make the link in the bottom of the page more clear:

http://www.picwing.com/faq

Here are some answers to your questions:

The pictures don't carry over to the next month. We send you notifications when the shipping date is approaching to remind you to use your pictures. We are thinking of ways of how to solve this situation in the near future but for now if you don't use your pictures in one month you will loose them.

You can change plans as many times as you want. Every time you change plans we ship the pictures that you have in your current plan and we pro-rate the cost according to how many pictures you had when you switched plans.

The sending date is for now fixed, however, we are going to add a 'Ship now' button so you can decide if you want to send the pictures before your scheduled date.

Thanks again for your feedback. We will definitely take it into account to continue developing our service.


Your service is _almost_ there - I have no problem to committing to $10/month in pictures as I already spend that, so I am asking for just a little more value. The printing on the back is something my current printer doesn't offer. Will you add date/time picture was taken to anything I put there? The iPhone inserts latitude/longitude into the picture's EXIF data, how about reverse geocoding that and printing a street address. Can I switch the address to where the pictures are sent? Here is my situation: two young kids and two sets of remote grandparents. So I want to save 3 addresses (or more) and decide maybe one month my wife's parents get the prints and maybe next month my parents do.

There is no commitment, is there? Be explicit about when you will charge my credit card so I know the window to cancel the service - the best from my perspective would be charge right before you ship.

I already have my workflow: take pics->upload to online service->send to printing service. Maybe you could grab pictures from my online service, maybe grab ones I have tagged somehow.

You are very close to something very useful, experiment


Hi. Thanks again for your comments. You can switch the address of your recipient whenever you want. We send pictures to the recipients that you have set up the day your shipments are due. The credit card is charged when you sign up for the service but if you decide to cancel we ship the pictures that you have uploaded so far and return a pro-rated amount. We will continue experimenting with this. Thanks for your input.


Thanks for the awesome suggestions. Just to add to Enrique's comment, there is no commitment. You can cancel your plan at any time.


Yes, we are planning to release an API to develop new applications for the frame. We have done some work already in that regard but we want to have something very solid before releasing it.


Awesome. The other thing, and I expect you have this in mind already, is that if I were to buy one, I'd want a thinner more modern bezel instead of a picture-framey one. Are you planning to make different styles/colors available in the future?


Def. We'd like to have something that looks a lot slicker in the future.


That's a great idea. Thanks for the suggestion !! We have also thought about using them as kiosks for events like conferences or for taking orders in different businesses.


Keep your prices down and your APIs open and people will do this stuff for you, and feel like great hackers for doing it. Kiosks seem like the kind of thing entrepreneurs love to dream up business ideas for and none of them seem to make much impact - that's a purely unscientific intuition.


Keep your prices down and your APIs open and people will do this stuff for you

A mere upvote can't express how good I think this advice is.


This advice will be well noted. Thanks.


This is Enrique from picwing. In addition to the larger display, the picwing frame runs on a faster hardware platform, supports Actionscript 3 for application development and doesn't require the user to go to a different computer to customize and install widgets. Eventually we would like to release an application store (running on the frame itself) for people to install new apps for their frame. We are ourselves big fans of the chumby and we have tried to learn from its advantages and shortcomings.


I come from a country where there is very little investment in technology and almost no innovation happening. I hope one day I will have the financial freedom to do something similar to YC there because I strongly believe there are many talented people waiting for opportunities and so many places where technology and innovation could be extremely helpful.

So I just want to say thanks for what YC does. It changes people's lives and inspires others which I believe is something extremely satisfying and something to feel immensely proud of.


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