Show HN: I'm building the “chess.com” of speed cubing https://ift.tt/I8cweid

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Show HN: Colorfle – A daily color mixing game inspired by Wordle https://ift.tt/yFuIV7l

Show HN: Colorfle – A daily color mixing game inspired by Wordle Hi HN, I was inspired by Wordle to make Colorfle, a different take on the genre where the goal is to mix colors together to match the target color within six tries. There were some interesting problems to tackle in making this game, one of them being the difference between mixing digital colors and real-life behavior (in RGB, blue + yellow = grey!). I hope you enjoy it -- any feedback would be much appreciated! https://colorfle.com/ April 29, 2022 at 09:50PM

Show HN: Balloons - A clicker game generated by OpenAI Codex https://ift.tt/hCV2iFq

Show HN: Balloons - A clicker game generated by OpenAI Codex https://ift.tt/EODnf0P April 30, 2022 at 05:22AM

This Day in History: McAllister Street 1909

This Day in History: McAllister Street 1909
By Jeremy Menzies

Here’s a look back to April 29,1909 with two photos showing an important change to McAllister Street in the Western Addition. McAllister has been served by a transit line since at least the 1880s. Beginning with a cable car run by the Market Street Cable Railway, McAllister served as an important part of the city’s east-west transit system. 

These two photos show construction work to remove the old cable car tracks and replace them with electric streetcar rails:

Laborers dig cable car “yokes” out of the street on McAllister between Scott and Pierce streets. Yokes are heavy steel frames that support both the rails and the cable channel on a cable car trackway.

Prior to the 1906 Earthquake and Fires, San Francisco’s transit system was largely made up of cable car lines, which made navigating the steep hills easy. However, the cable cars were slow and costly to operate compared to newer electric streetcars.  Following the ‘06 disaster, in an effort to rebuild and modernize the system, nearly all cable car lines were replaced by electric streetcar lines.  

Workers install ties and rails to run the 5 McAllister Streetcar Line on McAllister and Pierce. 

As can be seen in the photos, the work to replace the cable tracks was labor intensive and difficult. Due to the way cable car lines were built, the work to remove them had to be done almost entirely by hand with picks, prybars, and shovels. Laying streetcar tracks was marginally easier with the help of special work streetcars. All the work to lay and align the new tracks was done by hand. 

Today, the 5 and 5R routes carry on the legacy of these cable and streetcar predecessors by continuing to serve this same stretch of McAllister.

Published April 30, 2022 at 04:11AM
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Show HN: Radiopaper – Troll-resistant public conversations https://ift.tt/Db1XRVt

Show HN: Radiopaper – Troll-resistant public conversations Hi HN! We're a bootstrapped team of 4 and have been building Radiopaper for around 16 months alongside other full-time, part-time, and consulting jobs. I wanted to highlight a couple of the unique characteristics of Radiopaper that may not be immediately apparent when browsing https://ift.tt/mTLzuUn * It's possible to interact with Radiopaper entirely by email, and never log-in interactively. The notification emails contain context that explains that if you reply to the email, your message will be published on https://radiopaper.com * The key mechanism that makes Radiopaper different from other social networks, and more resistant to trolling and abuse, is that messages are not published until the counterparty replies or accepts your comment. You can read more about this in our manifesto at https://ift.tt/tnxrevg The technical stack is a Vue/TypeScript app talking to an API backend written in Go, running on Cloud Run, and using Firestore for persistence, Firebase Auth for authentication. Email processing is handled through the Gmail API hooked up to a Cloud Pubsub notification which triggers another Cloud Run service. Outbound emails go through SendGrid. The whole stack "scales-to-zero", and on days that we have a few hundred active users, we're still under the free limits of Firebase Hosting, Cloud Run & Firestore, so this has allowed us to operate for a long time without funding or revenue. Our overall burn rate is around $40/month, mostly from the smattering of other SaaS offerings we use: Sentry, Mixpanel, Github & SendGrid. Dave & I discuss our tech stack in a little more detail in this conversation: https://ift.tt/2DjrLkq The team (myself, daave, davidschaengold, youngnh) will be around to answer any questions! https://ift.tt/mTLzuUn April 30, 2022 at 04:18AM

Show HN: Djaz-Envelope: DocuSign like e-signature https://ift.tt/yrSPTBC

Show HN: Djaz-Envelope: DocuSign like e-signature Landing: https://djaz.io Application: https://app.djaz.io Share one or more documents to sign or view by recipients. This is called Envelope in Djaz. You can also just sign own document without using Envelope. And than include it in Envelope for viewing. Watch here for details: https://youtu.be/-hlThDTyvDQ April 30, 2022 at 03:13AM

Show HN: Porting Zelda Classic to the Web https://ift.tt/4aTZ27M

Show HN: Porting Zelda Classic to the Web I spent the last two months porting Zelda Classic, a 20+ year old C++ Allegro program, to the web. If you're a fan of the 2D Zelda games, you'll likely find some very enjoyable games here. I also write at length about the process of porting a large C++ application to the web. https://ift.tt/3bpswNc April 30, 2022 at 01:57AM

Show HN: YC Vibe Check – semantic search over every YC company ever https://ift.tt/qQWhEk5

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Amazon posts loss as online sales falter

The e-commerce giant is wrestling with the impact of rising costs and the war in Ukraine.

from BBC News - Technology https://ift.tt/6cYtzKM

Twitter adds 30 million new users in run up to Musk sale

Thirty million new users have joined in the last year, says Twitter, as it prepares for new ownership.

from BBC News - Technology https://ift.tt/6tMbufW