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Saturday, 30 April 2022

New top story on Hacker News: Ask HN: Beyond AWS/Azure/GCP, what cloud providers should I know more about?

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Ask HN: Beyond AWS/Azure/GCP, what cloud providers should I know more about?
9 by tomrod | 4 comments on Hacker News.
If you were to advise someone starting to build a SaaS product from an idea, what cloud providers would you recommend knowing more about beyond the bigger three?

Friday, 29 April 2022

New top story on Hacker News: Ask HN: It's 2022. Where should I direct the youths to learn about programming?

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Ask HN: It's 2022. Where should I direct the youths to learn about programming?
11 by slyrus | 11 comments on Hacker News.
So... Child #2 (18 yo) is interested in learning programming. Good "with computers" and proficient in level-appropriate math but didn't grow up as a hacker like his old man (I'll refrain from making him learn turtle graphics and BASIC). Where should I point the kid to learn the basics? I'm afraid that if I show him how to download (or, better yet, build) emacs, how to build SBCL, install SLIME, etc... and hand the kid copies of SICL and PCL someone will call child protective services on me. I imagine there was a time when the answer would have been java/awt, but those days seem long gone. Maybe there was a let's do it all in javascript phase, but that doesn't seem to be the answer today. So... modern starter pack? VS Code and Python? Tell him to learn Pandas/SciPy/NumPy? Are there any highly recommended online courses for learning this stuff?

Thursday, 28 April 2022

New top story on Hacker News: Ask HN: Do you find it challenging to talk to your users?

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Ask HN: Do you find it challenging to talk to your users?
13 by atomiomi | 6 comments on Hacker News.
One of the problems I faced when I had my first users on [just-diary.com](http://just-diary.com) is that I didn’t have any way to talk to them. Like getting feedback on using the product, asking them questions about what they want from it, and sharing some tips on how to use some features. Does anyone have the same problem? If yes, how did you solve it?

Wednesday, 27 April 2022

New top story on Hacker News: Show HN: Xlibe: a serverless Xlib (X11) compatibility layer for Haiku

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Show HN: Xlibe: a serverless Xlib (X11) compatibility layer for Haiku
12 by waddlesplash | 1 comments on Hacker News.
Hello HN, While there are some projects that implement partial versions of Xlib APIs on non-X11 platforms for compatibility (most notably, Tk), I don't know of any others sophisticated enough to run Cairo and GTK applications (albeit with a few hacks). So I figured this might be technically interesting. As of now it just implements the base Xlib APIs, it doesn't implement XRender, GLX, XInput2, etc. (though it's more than possible, I just didn't see a need yet.) Cross-program interaction is also very limited, and there are plenty of X11 features that likely can't be implemented; but this works sufficiently well that GTK3 is now in Haiku's default package repositories, with GIMP and Inkscape atop it to boot, using this. And for the fun of it, I did try to compile Xnest (the X.org server variant running on top of Xlib) on top of this; it crashed on startup in the keyboard handlers. However, that could potentially be because I didn't have the necessary data files and not because of anything missing in Xlibe; I didn't investigate too far (or it could be an actual incompatibility; Xlibe's keyboard subsystem is rather primitive and is most of the reason I had to patch GTK for full functionality.) (A few more screenshots, including GTK and WINE running atop Xlibe: https://ift.tt/xqdWY3w... )

New top story on Hacker News: Show HN: A tool to seed your dev database with real data

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Show HN: A tool to seed your dev database with real data
16 by ev0xmusic | 1 comments on Hacker News.
A bunch of developers and myself have created RepliByte - an open-source tool to seed a development database from a production database. Features: - Support data backup and restore for PostgreSQL, MySQL and MongoDB - Replace sensitive data with fake data - Works on large database (> 10GB) (read Design) - Database Subsetting: Scale down a production database to a more reasonable size - Start a local database with the prod data in a single command - On-the-fly data (de)compression (Zlib) - On-the-fly data de/encryption (AES-256) - Fully stateless (no server, no daemon) and lightweight binary - Use custom transformers My motivation: As a developer, creating a fake dataset for running tests is tedious. Plus, it does not reflect the real-world data and painful to keep updated. If you prefer to run your app tests with production data. Then RepliByte is for you as well. Available for MacOSX, Linux and Windows. > https://ift.tt/XELlxw9

Tuesday, 26 April 2022

Monday, 25 April 2022

Sunday, 24 April 2022

Saturday, 23 April 2022

Friday, 22 April 2022

Thursday, 21 April 2022

Wednesday, 20 April 2022

New top story on Hacker News: Show HN: DTL: a language and JavaScript lib to transform and manipulate data

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Show HN: DTL: a language and JavaScript lib to transform and manipulate data
17 by jk0ne | 1 comments on Hacker News.
DTL is a project that began it's life as part of a another piece of software for a startup I founded a few years ago. For that project I needed a way to describe how to rewrite data in a portable way. I needed to be able to create the rules on the fly and store them in a database, I needed them to be able to describe transformations I hadn't thought about, but also needed them to be safe and predictable. Though the startup didn't survive, the language I made was so useful to me I felt I had to extract it and make it usable to everyone. DTL is the result. Though the npm module is relatively new, the language itself has been in use in production systems for years. Over the past couple of years I have been working to make it more accessible and useful to newcomers. Though it's really powerful, I tried to make it easy to use and simple to understand so that you can get up to speed quickly and use only as much as you need. To summarize: DTL is a javascript module and related CLI tools that are really handy for transforming data from one format to another. It's made to allow you to specify your transformations as data (JSON by default) which means they are easily shared from frontend to backend and vice versa, as well as making them easily stored in databases, etc. It can be used as part of your project to transform data between APIs, between the frontend and your database, etc. and can do simple mappings as well as complex calculations. It can also be used for validation and is really handy for extracting useful information from large / complex datasets (there are some great examples of this you can try on the website). The CLI tool (dtl) is like jq on sterooids, allowing you to slice, dice and remap csv, yaml, json or even plaintext data doing anything you can describe in a DTL transform. If you ever wished you could `grep` in complex data structures, today is your lucky day. :) I'd love any feedback you have and if you think of anything it doesn't have that it should, I'd love to hear that too.

Tuesday, 19 April 2022

Monday, 18 April 2022

New top story on Hacker News: Ask HN: MacBooks seems to be the only viable option these days

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Ask HN: MacBooks seems to be the only viable option these days
62 by open1414 | 134 comments on Hacker News.
I've used ThinkPads all the way from the IBM days and those good old solid Dell computers too. Recently, I decided it was time for an update. I use Linux on the often so it was important for me to purchase a laptop that was compatible. I bought 2 laptops, all of which I had to return in the last 2 months. 1. Dell XPS: I spent over 20+ hours with their support going back and forth. I also had a tech come to my house to replace my motherboard before I gave up and demanded a return 2. Lenovo Carbon X1: The laptop came with a faulty keyboard so I just returned it because I didn't want to wait 30 days for a mail-in repair or drive 2 hours to go to a "local" repair shop. They also made me order the laptop 3 times because their system kept cancelling it for whatever reason so it took an insane amount of time to just purchase the laptop (I spent ~6 hours to just purchase the laptop) Maybe I'm just unlucky but the time I spent and energy I spent to just purchase these laptops shows you why people buy from Apple instead. I strongly dislike MacOS because they force the "apple way" of doing things. But it seems to be the only option these days to buy a computer with ease and get a computer "that just works". My Macbook was more expensive but the time I saved outweighs the price imo.

Sunday, 17 April 2022

Saturday, 16 April 2022

New top story on Hacker News: Ask HN: What should I bring up during salary negotiation as a junior developer?

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Ask HN: What should I bring up during salary negotiation as a junior developer?
17 by _lgj5 | 25 comments on Hacker News.
So i am a junior software developer in a large consultant company and have my first salary negotitations soon and need some help. I was told all juniors would increase the same in a sort of collective way since some did not get the same chances when it came to projects and performance, however my boss said there was a small change they would consider giving a larger raise based on performance. I have been lucky and got a very good project, as in I could show my strengths and it's a high value customer. During the project i took a lot of initiative and responsibility, we were 3 developers working on it (2 seniors and me) and luckily one of them is my boss. The project is now being used by the customer and I am the only one maintaining the project and feeling I have taken even more responsibility than was expected. The project was fairly large consisting of 2 frontends and one backend, where I made ~80% of both the frontends and did all the database work on the backend. To be honest being told that my performance wont impact my salary is kind of a bummer considering i have to wait another year for the next possible raise. I can see myself working here for some time, but i feel like saying that would make them feel like they can pay me less as im not going to leave in the foreseeable future. The project is now also being used as a reference to sell consultants to other customers and it has also garnered attention in nationwide news. So my question to you is how should approach the salary negotiation and how should i present my case to my boss? Sorry if this is incoherent, english is not my first language. Thanks.

Friday, 15 April 2022

Thursday, 14 April 2022

Wednesday, 13 April 2022

Tuesday, 12 April 2022

Monday, 11 April 2022

New top story on Hacker News: Show HN: Multiplayer Demo Built with Elixir

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Show HN: Multiplayer Demo Built with Elixir
69 by wenbo | 15 comments on Hacker News.
Hey HN, I’m an engineer at Supabase [0] and one of the creators of this demo. My team and I have been working hard to bring developers the next version of Supabase Realtime. The current version of Realtime [1] is a Change Data Capture (CDC) server for a PostgreSQL database that broadcasts changes via WebSockets to authorized subscribers. It’s written in Elixir/Phoenix. The server utilizes PostgreSQL’s logical replication functionality, which writes database changes to Write-Ahead Logging (WAL) segment files, and a replication slot, responsible for managing and retaining WAL files. Database changes are polled from WAL by the server using PostgreSQL’s replication function pg_logical_slot_get_changes and changes converted to JSON objects using the wal2json [2] extension by setting it as the output plugin. Security is enforced through two checks - each check ensures only authorized client subscribers are sent database changes. The first check validates a JWT that is sent by clients subscribing to database changes. This JWT must contain an existing database role and optional claims, both of which can be referenced in Row Level Security (RLS) policies. Every valid client subscription is then inserted into the realtime.subscription table with an assigned UUID, database role, and claims. The second check calls the realtime.apply_rls SQL function from Write Ahead Log Realtime Unified Security (WALRUS) utility lib [3]. This function takes the database changes, executes a prepared statement to verify if the database role and claims have SELECT permissions on the changes, and outputs an array of authorized UUIDs. Then, the server finds all the subscribers whose UUIDs are in that array and broadcasts the changes to them. The next version of Supabase Realtime will offer three features: Broadcast, Presence, and Extensions. Broadcast, our Pub/Sub offering, can be used to pass ephemeral data from client to client such as cursor movements. This runs on a distributed cluster of nodes built on top of Phoenix PubSub + Channels. Presence, can be used for tracking online/offline users and their state. This is built into Phoenix, and uses replicated state across a cluster using an Observe-Remove-Set-Without-Tombstones (ORSWOT) CRDT [4] which prefers adds over removes when resolving conflicts. Extensions, are a way for the community to add additional functionality to take advantage of the WebSocket infrastructure. We have converted the existing Change Data Capture system to an extension that supports connecting to multiple customer databases (multi-tenancy). Other possible extensions include listening to other databases like MySQL and getting stock market events server-side [5], then broadcasting them to connected clients. This demo is built using a Supabase project, Supabase Realtime, and Next.js and deployed on 20 Fly [6] nodes located around the world. You can find an introduction and walkthrough of the demo here [5]. Supabase Realtime is entirely open source and you can find the demo code here [7]. Once we have stabilized the release we will add it to the self-hosted offering [8]. This demo is a way to highlight the upcoming features and gather feedback/ideas. Feel free to ask me anything and let me know what you think! [0] https://supabase.com [1] https://ift.tt/AZF5HfN [2] https://ift.tt/nXetGsa [3] https://ift.tt/uSMWDyF [4] https://ift.tt/608qPmw... [5] https://ift.tt/4stGIyb... [6] https://fly.io [7] https://ift.tt/kgjpYSb [8] https://ift.tt/XhfViQN

Sunday, 10 April 2022

Saturday, 9 April 2022

Friday, 8 April 2022

Thursday, 7 April 2022

Wednesday, 6 April 2022

Tuesday, 5 April 2022

Monday, 4 April 2022

Sunday, 3 April 2022

New top story on Hacker News: Tell HN: OpenBB scraping GitHub emails for marketing spam

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Tell HN: OpenBB scraping GitHub emails for marketing spam
53 by tmp_1649016698 | 8 comments on Hacker News.
A recent post[0] went around about OpenBB. I starred their GitHub[1] repository because I was interested and now I've just received an email[2] thanking me for signing up for their newsletter. Look, I hate to call the project out but I'm tired of people scraping GitHub for emails and blasting out marketing spam. And I'm confident they scraped my email from GitHub because that's the only place 'github@mydomain.com' is used. [0]: https://ift.tt/PAjmg15 [1]: https://ift.tt/aOWNDry [2]: Hi, We, as OpenBB, would like to personally thank you for signing up to our newsletter. We are on a mission to make investment research effective, powerful and accessible to everyone. The team would love to hear what you think of our OpenBB Terminal and if there is anything we can do to improve it. Feel free to e-mail us at hello@openbb.co or reach us through our Discord to get involved with the community.

Saturday, 2 April 2022

Friday, 1 April 2022

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