jeffbarg

I'm sure it's been posted on HN before, but a great summary of other Rust libraries/frameworks for web development can be found here: https://www.arewewebyet.org/

The couple of times I've checked it's been fairly up to date and helpful for understanding what's out there.

I'm much more excited about this new offering: https://aws.amazon.com/qldb/ (Disclaimer: I work at Amazon but not on AWS).

A "cryptographically verified transaction log" seems like a much better alternative for almost all private blockchain use cases I've seen (there aren't many that make sense).

It's cool that AWS offering a productized version of Ethereum for customers who want it, but I imagine once people get past the buzzwords, it makes much more sense to have something centralized, or use a secure public blockchain like Ethereum / Bitcoin for public auditing.

The most shocking part of this to me is the last line:

"The City of Helsinki is Finland’s biggest employer with around 38,000 employees."

Is this common for governmental organizations to be such large employers? Even in Europe, this is surprising to me.

"While Apple, Google, and Facebook are beginning to offer tools to better understand how much we use their devices and services, those companies can’t viably fix technology addiction because their businesses prevent them from doing so."

Apple's business doesn't. I think Screen Time and App Limits will likely become two of Apple's main competitive advantages going forward because of it -- there's no way Google or Facebook could offer such a product for their services in any meaningful way without destroying their core business.

This definitely interests me as well. Another 'wasteful' mechanism is the nearly-ubiquitous use of JSON over a more optimized format like protocol buffers, etc... It reminds me of another HN discussion here: https://news.ycombinator.com/item?id=9761667

I understand that economically the savings in development time usually outweighs the bandwidth costs, but I would be interested in any analysis on how wasteful this is overall.

I can't view the article behind paywall, but there was a recent documentary about this short position.

Worth a watch: http://bettingonzeromovie.com/

I think the most useful resource you have for understanding the foundation is directly reading and understanding the original Bitcoin whitepaper: https://bitcoin.org/bitcoin.pdf

For some of the basics, you can take a look at Anders Brownworth's web demonstration: https://anders.com/blockchain/

I'd also recommend looking at the source code of some of the bigger blockchains (Bitcoin Core, Geth, etc..) and look at some smaller demo blockchain implementations:

- https://github.com/Jeiwan/blockchain_go/tree/master

- https://github.com/kendricktan/misocoin

- https://github.com/jeffbarg/Littlecoin (disclaimer: I am the author of this project)

LittleCoin is a fully-frontend browser-based cryptocurrency I built using React/Redux and P2P connections using WebSockets/EasyRTC. If you just want to check it out, click on the URL, add a new address, and start mining some coins! You can join the main network or join a named test network with another device and send coins back and forth between connected peers.

Let me know if you have any questions!

This is hilarious