Show HN: Snabl – a practical embedded Lisp in C++ https://ift.tt/PanywVX

Show HN: Snabl – a practical embedded Lisp in C++ https://ift.tt/6bJj42f March 25, 2022 at 06:27AM

Show HN: Later Cam – a disposable camera app that mails you photos https://ift.tt/STsuwyQ

Show HN: Later Cam – a disposable camera app that mails you photos https://ift.tt/5NwfFpB March 25, 2022 at 05:54AM

Show HN: Postgres.js – Fastest Full-Featured PostgreSQL Client for Node and Deno https://ift.tt/iuSM5LV

Show HN: Postgres.js – Fastest Full-Featured PostgreSQL Client for Node and Deno https://ift.tt/oxmDAVi March 25, 2022 at 01:00AM

Show HN: Webapp to generate colorful QR codes https://ift.tt/kZoVPEX

Show HN: Webapp to generate colorful QR codes https://sqr.co/qr/url March 24, 2022 at 04:21AM

Show HN: Bezier Curve Generator from Letters https://ift.tt/NwcQgnm

Show HN: Bezier Curve Generator from Letters Hello, This is a web app that lets you generate some bezier curves that you can then paste into your vector editor and practise tracing. It is a MVP. Feedback welcome, thanks, Enzo https://ift.tt/TcnrPQA March 24, 2022 at 04:10AM

Show HN: Create Matplotlib visualizations from the command-line https://ift.tt/iCU3HcJ

Show HN: Create Matplotlib visualizations from the command-line I do lots of data analyses in the command-line and I was missing a simple utility to plot the output of a command (without having to script it). I like very much the Matplotlib API but I found no CLI to pipe data into it. So, I wrote MatplotCLI, a simple CLI that reads data from the stdin and allows to easily create interactive plots from the command-line. Have a look at the README for examples and recipes. Let me know what you think, thanks! Some examples: $ plt "hist(x,30)" < sample.json $ cat sample.json | plt --no-show "hist(x,30); savefig('myimage.png')" $ plt --no-input " x = np.linspace(-1,1,2000); y = x*np.sin(1/x); plot(x,y); axis('scaled'); grid(True)" $ echo ' {"a":0, "b":1} {"a":1, "b":0} {"a":3, "b":3}' | plt "plot(a,b)" https://github.com/dcmoura/matplotcli March 23, 2022 at 01:00AM

Show HN: We made an open-source personalization engine https://ift.tt/Sc2gohi

Show HN: We made an open-source personalization engine Hey, HN! You probably know that the ordering of products on Amazon, posts in FB, and search results in Google is personalized for each visitor, as it directly affects conversion, click rate and engagement. But not everyone can afford to hire an army of PhDs to squeeze every penny out of the ranking, and not everyone agrees on the current (im)balance between privacy and profits. So we built Metarank, an open-source and privacy-focused personalization engine. It can rerank in real-time any type of content, using only the data you allow, and optimize metrics you define. We made a lot of proprietary DIY services for personalization in e-commerce in our past careers and heard so many complaints from other companies also struggling to implement personalization. It’s often considered "too risky" to spend 6+ months on an in-house moonshot project to reinvent the wheel without an experienced team and no existing open-source tools. Like other people in the industry, we were tired of building everything from the bottom up each time we approached personalization - it should be easy not only for Amazon to do such magical ML tricks, but for everyone else. A small demo of the tool with personalized recommendations: https://ift.tt/5Tth8EZ A blog post on how this demo was made: https://ift.tt/aR0LPYU... The project itself: https://ift.tt/1RNcXZw https://ift.tt/1RNcXZw March 23, 2022 at 06:42PM