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Ask HN: What did you make during lockdown?

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Re: Ask HN: What did you make during lockdown?

#401

Post by fpgaminer »

jstanley wrote: post #334
myroon5 wrote: post #162

Earlier quoted context omitted.

How does it handle moves where pieces might accidentally hit each other like https://en.wikipedia.org/wiki/Castling and knight moves?

It uses a ridiculous bastardisation of Dijkstra's algorithm to work out the shortest set of operations to get the piece from where it is to where it needs to be. This includes a way for it to notice that it would like to run into another piece, and then add to the search tree a copy of the current node, but with some operations inserted at the start to first move that piece out of the way. It's in here, but not for t…

I'm having a hard time not crying over how beautiful this is. There's something so ludicrously satisfying about bringing our professional computer science hammers to bear on silly hobby projects. I love it. It's like being a kid again, where everything is just imagination and fun, but we get to finally play with the big boy's toys (like Dijkstra's algorithm).

Re: Ask HN: What did you make during lockdown?

#402

Post by papeda »

rubyron wrote: post #371

I made Timmy ( https://timmytimer.com ), a social pomodoro timer with free web and mobile apps. Sort of like “Twitter for productivity.” No login required. It’s getting a lot of use by college students and coders. Pretty fascinating to see what everyone is working on or learning. The social accountability and leaderboard are proving to be strong motivators.

Not a pomodoro person, but I really like the idea of a cute mascot helping people get closer to their goals. Good job!

Re: Ask HN: What did you make during lockdown?

#403

Post by jtokoph »

amaurymartiny wrote: post #395

I built a tool to check if an email exists without sending any email. I also created a SaaS out of it: [link redacted]. The tool connects to the target email's SMTP server, and parses the response of the "RCPT TO" command. To avoid IP blacklisting, I use Tor. The code is in Rust, 100% open-source. The core library is here: [link redacted]

Aren’t Tor exit nodes mostly blocked already?

Re: Ask HN: What did you make during lockdown?

#405

Post by rodriguezartavi »

I look at it as "The Call Center for the rest of us..."

I was forced to really learn my way around Twilio when everyone on the office went home.

After 3 weeks I ended up with a "React App" where all of my team can pick up the phone, 'whatsapp', SMS, and email. It's pretty cool because it turns the CRM thing around, because you start with the contact already in the system, so it's a native customer centric approach compared to older computer centric ones.

All this matched a migration into a new PWA based on React-Admin - so next to the "Call Center" are all the "admin" actions. I guess this was called an ERP. Only now it has a Call Center build on top of it.

I did inspire myself on Twilio Flex - but at $150/user/month I decided to build it myself and eject from all the plugin complications of building for a platform.

I have learned a lot, and jumped into the crazy world of VOIP. Collaborated with new colleagues and enjoyed myself building something totally new from my head to the screen.

Re: Ask HN: What did you make during lockdown?

#406

Post by vanviegen »

I created an Open Source (well, that's the intention anyway) online proctoring solution. It records the at-home exam proceedings using a screen capture, the webcam and a side camera (a mobile phone). All web-based.

It doesn't need a streaming server, but clients upload encrypted blocks of video directly to cloud storage instead. So that should make it scale rather easily.

Unfortunately, concerns from students (some of which valid) about the privacy implication of such systems, and a lot of negative press about this, killed the momentum. So it hasn't been used for actual exams (yet).

Feel free to poke around: https://toetshub.nl/

Re: Ask HN: What did you make during lockdown?

#407

Post by NicoJuicy »

I launched http://belgianbrewed.com where you can find the most belgian beers online.

We launched early, since suddenly users were ordering on the beta environment. Product descriptions are not complete yet ( > 900 products)

I had some webshops before ( on woocommerce), but this became pretty big in a short time. It's already sold to my supplier ( who is a good friend off mine), but I'm still shipping new features.

The latest thing I added was E-commerce-filters.

Next one is "suggested products". And we are onboarding 2 breweries that moved their E-commerce from their own to belgian brewed.

I'm also redesigning the backend currently for seperating the backend to a "cloud" one and transforming it all to DDD.

Within a month, I'm planning to start my second shop on the platform, for a totally different use-case, as I'm "picky" on the clients to onboard first.

Since I need them to request totally new features, so I can expand functionality.

It's. Net currently with plans to move to. Net core ( I'm much more productive in .net framework currently, I hope that changes soon)

Re: Ask HN: What did you make during lockdown?

#408

Post by rubyron »

papeda wrote: post #402
rubyron wrote: post #371

I made Timmy ( https://timmytimer.com ), a social pomodoro timer with free web and mobile apps. Sort of like “Twitter for productivity.” No login required. It’s getting a lot of use by college students and coders. Pretty fascinating to see what everyone is working on or learning. The social accountability and leaderboard are proving to be strong motivators.

Not a pomodoro person, but I really like the idea of a cute mascot helping people get closer to their goals. Good job!

Thanks! I always try to brand projects with some kind of named mascot where possible.

Re: Ask HN: What did you make during lockdown?

#409

Post by armini »

Given the current economic climate, we decided it was time to build a game showing how China works.

Game Story: Little Jinping must pass through cities intercepting messages with no human contact. To prevent detection Jin can collect various artefacts to avoid contact. During the mad dash to his house, Jin must intercept as many messages as possible in order to unlock other cities in his quest for world domination.

https://apps.apple.com/app/id1510483891

https://play.google.com/store/apps/details?id=com.eronka.jin...

Re: Ask HN: What did you make during lockdown?

#410

Post by dkersten »

samford100 wrote: post #383

https://thiswoddoesnotexist.com/ I got to playing around with recurrent neural networks and made a site that generates Crossfit "Workout of the Days (WODs)". It's trained on the workouts from crossfit.com. My motivation were to learn more about how character-based RNN's work, remember how to host a site on my Digital Ocean VPS with flask, and do some fun frontend work. It posed a few unique challenges, like scraping…

I clicked the link and it told me "rest day" :D Nice. haha
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