News for hackers. Stuff that matters.

davinci26

Re:Microsoft YARP on Sunday February 20, 2022 @04:32PM (#30409431)
I don't think anyone is using Envoy for peak performance. It is slower than haproxy and nginx but it has other advantages:

* it is super extensible * truly open-source and open to contributions by companies * the codebase is really modern and easy to reason about

Re:Michelin Puts Puffy Sails on Cargo Ships on Sunday June 27, 2021 @01:07PM (#27653245)
I don’t think it’s a good idea.

By adding so much surface area so high up you create a lever for winds to create torque to cape size the vessel.

The way sailing boats circumvent this issue is by having a big long metallic fin at the bottom of the boat(called keel). The keel counteracts the torque of the wind when the boat rotates and brings it back to a steady position.

The problem is that ports have fixed depth so if you modify an existing cargo ship with a keel it will no longer fit into the commercial ports

Re:OpenSSL Security Advisory on Friday March 26, 2021 @02:17AM (#26589251)
Envoy comes with ssl support and it uses the google variant of openssl (boringssl).
Re:Show HN: Tweek – Fast to-do weekly calendar app on Friday August 14, 2020 @04:10PM (#24162662)
This is awesome, I've been locking into this for such a long time.

I am using notion now and everything is there so if there was an integration with it I would 100% use it

I had revolut or wealthsimple in mind that both make trading/exchanging money more like a game and a wholesome experience.

I think because of the app the user is "forced" to concentrate and use the whole screen of the app (especially for the phone) it enables a more immersive experience. Whereas most browser apps feel like a transactional thing.

Controversial opinion: Yes, native desktop apps are the future.

Msft is pushing on react-native-windows and macOS has project catalyst. React-native is making cross-platforms native apps viable.

Apps are way more immersive than the browser and it allows the developer to give a gamification experience.

Re:Ask HN: What's your quarantine side project? on Thursday May 14, 2020 @01:58PM (#23183017)
I would love to know your problems with the post :) If you got spare time feel free to reach out either here or via email or via Twitter, whichever is more convenient
Re:Ask HN: What's your quarantine side project? on Thursday May 14, 2020 @01:56PM (#23182975)
Awesome thanks a lot for the constructive feedback! There are a lot of things to unpack. Let me answer the question.

> Also, how much leverage are you taking on? Equal to the value of the portfolio since this how much you need to have 1-1 hedge. The hedging instrument is just short selling the stock.

> Puru Saxena has a different portfolio.

I am inspired by the hedging mechanism that he uses and I started with the same technical triggers.

> The type of hedging you describe in your example is equivalent to just selling the shares, but a little worse.

I see what you are saying and I agree with it.

I am not sure if it is actually worse. Avoiding a tax event on your long position (which in the long run is the most profitable) is actually really important as you more capital to compound.

I know of Quantopian but I have never used and the calculation seemed simple enough to do with vanilla python/pandas. I did not think of using vector of weights, that would be a better approach and much more scalable.

360 would probably be a better number. https://www.investopedia.com/terms/c/commercial-year.asp for CAGR calculation. I did that for the interest but forgot about it in the CAGR.

Re:Ask HN: What's your quarantine side project? on Thursday May 14, 2020 @01:24AM (#23175640)
I am working on my new year resolutions and learn to invest in individual stocks. I am slightly biased towards tech companies.

Why I am doing this:

- Improve my business (learn about different business models) - Improve my product sense - Hearing good CEOs talking at their investors is a great lesson.

What I am building:

- Use Azure to automate stuff and set up notifications for events I am interested in.

- Use python to backtest strategies.

I wrote this thing last week https://medium.com/@davinci260/why-only-buy-when-you-can-als...