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Ask HN: What are you working on and why is it cool?

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Re: Ask HN: What are you working on and why is it cool?

#341
BabyDigest (https://www.getbabydigest.com) - Share baby pictures safely

My baby's timeline/Demo: https://www.getbabydigest.com/timeline/santiago

It's cool because:

* It solves a key problem for parents: How do I easily share my baby's pictures & videos privately without requiring my friends and family to sign up or install something?

* It automatically finds pictures of your baby on your Facebook feed and pulls them into your baby's timeline, so that your grandmother can see them.

* Built in SF with my buddy and I using Django/Python, MongoDB, AngularJS

Re: Ask HN: What are you working on and why is it cool?

#342
Interactive visualizations and instruction in mathematics and physics. We can do so much more than what is usually presented for online learning. For example a catalog of visualizations, http://www.vizitsolutions.com/portfolio/catalog/, and a more complete lesson experiment http://www.vizitsolutions.com/portfolio/gausslaw/.

The goal is for the student to interact with, to play with, the models. Of course almost all of this is open sourced :) The visualizations can even be easily embedded in any online content with just a few lines of HTML provided in the catalog.

Re: Ask HN: What are you working on and why is it cool?

#343
Jumpshare (https://jumpshare.com) - Real-time file sharing service that allows you to view over 200 file formats right inside the browser.

It's cool because:

* People can now share and view the contents of the files online without having to download and view them using 3rd party desktop apps.

* People can collaborate around content while on the go.

* No need to sign up for multiple services to upload multiple file types, YouTube, Scribd, Slideshare, Flickr, etc. Just upload any file on Jumpshare and view it online, beautifully.

* Files shared can be viewed by the recipients without having to sign up for an account.

* Kills folder hierarchy and introduces a new type of folder organization to speed up file sharing.

* Bootstrapped and developed by 8 people.

Re: Ask HN: What are you working on and why is it cool?

#345

I'm working on a JSON based website layout and component system. For example: a component that lists blog posts could be represented by: { options:{ elements:[image, title, author, date] }, criteria:{ sort:date.desc, published:true, limit:10 }, request_vars:{page:3} } That would show the last 10 posts that are published, ordered by date, on page 3 of the results. That's a simple example, this site: volumeone.org is b…

How do you implement it in browser?

Re: Ask HN: What are you working on and why is it cool?

#346

Public Hidden Services These are services that have a secure, public URL that can be accessed by any web browser. The server hosting the traffic, however is completely anonymous and cannot be traced.

How is this different from the .onion.to and tor2web clearnet-to-onionnet services?

Re: Ask HN: What are you working on and why is it cool?

#348
I work on AWS DynamoDB Storage Engine. AWS DynamoDB is an infinitely scalable / infinitely provisionable / hosted low latency key value store. It is growing beyond the basic key value store definition rapidly with indexing etc.

Building and keeping a storage engine that runs on a ton of machines with high performance requirements / changing hardware / a bunch of new feature work etc. is truly hard. Add in other complexities such as live deployment of new software, monitoring for issues, testing the upgrade downgrade scenarios etc. you are looking at a super complex and fluid system. Very few people in the world get to be in the middle of such massive e-machinery, So it is a great place to be. Tough, but great.

If that sounds interesting to you, and you are looking to work on the bleeding edge of database technology used by a lot of customers, PM me! We are hiring in Palo Alto, Seattle and Dublin!

Re: Ask HN: What are you working on and why is it cool?

#349
I've been working on a mud implemented in python. For the uninitiated, mud stands for multi-user dungeon, and they are usually text-only multi-player games run over telnet. The first MMOs. It's cool because it is a modern project, using twisted for networking, it's event-driven and scripted, as opposed to hard coded and tightly coupled. The whole project is still highly in development and may not actually be in a working state but it's a labor of love. https://github.com/danielmunro/mudpy

Re: Ask HN: What are you working on and why is it cool?

#350
I'm working on a system to export users from one version & instance of our SaaS application and import them into another.

The cool/interesting part of this is that I'm using a combination of SchemaCrawler and our homegrown upgrade/migrations kit to naively (with the only domain-specific knowledge being where to start) extract a single account from a multi-tenant database and import it into another one, even if the other one is a different version. (I only support upgrades, as downgrades would cause data loss.) Because it all runs over JDBC, it also means that I can go from one database to another - MySQL to PostgreSQL, for example.

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