The best Hacker News stories from Show from the past day

from

All Show

from the past*

day week month

with these search terms:

Create follow Go back

Latest posts:

Show HN: Generate JSON mock data for testing/initial app development

Show HN: Generate JSON mock data for testing/initial app development

Show HN: Generate JSON mock data for testing/initial app development

Show HN: Leporello.js – interactive functional programming IDE for JavaScript

Hi! Leporello.js is an interactive functional programming environment designed for pure functional subset of JavaScript. It executes code instantly as you type and displays results next to it. Leporello.js also features an omnipresent debugger. Just position your cursor on any line or select any expression, and immediately see its value. Leporello.js visualizes a dynamic call tree of your program. Thanks to the data immutability in functional programming, it allows you to navigate the call tree both forward and backward, offering a time-travel-like experience. Leporello.js offers the ability to develop HTML5 applications interactively, enabling you to update your code without losing the application's state.<p>It records an IO trace of your program, which is then transparently replayed during subsequent program executions. This allows you to instantly reexecute your code after making small tweaks, thereby tightening your feedback loop.<p>Furthermore, Leporello.js can serve as an interactive notebook. You have the flexibility to utilize any JavaScript libraries to visualize your data directly within your code.<p>For a more detailed walkthrough, please watch the product video. Currently, Leporello.js is available as a free online application that you can try right in your browser. My goal is to build the Leporello.js standalone Electron app and a VSCode plugin, both with TypeScript support. Additionally, I plan to add Node.js support (currently, Leporello.js is only for HTML5 apps). In the VSCode plugin, Leporello.js will sit on top of the built-in TypeScript/JavaScript mode, utilizing its code analysis information to enhance the default VSCode experience with unique Leporello.js features.<p>I am building Leporello.js as a single independent developer. Leporello.js is funded solely by donations. Support me on Github Sponsors [0] and be the first to gain access to the Leporello.js Visual Studio Code plugin with TypeScript support.<p>I'll be delighted to answer any questions you may have.<p>[0] <a href="https://github.com/sponsors/leporello-js">https://github.com/sponsors/leporello-js</a>

Show HN: Leporello.js – interactive functional programming IDE for JavaScript

Hi! Leporello.js is an interactive functional programming environment designed for pure functional subset of JavaScript. It executes code instantly as you type and displays results next to it. Leporello.js also features an omnipresent debugger. Just position your cursor on any line or select any expression, and immediately see its value. Leporello.js visualizes a dynamic call tree of your program. Thanks to the data immutability in functional programming, it allows you to navigate the call tree both forward and backward, offering a time-travel-like experience. Leporello.js offers the ability to develop HTML5 applications interactively, enabling you to update your code without losing the application's state.<p>It records an IO trace of your program, which is then transparently replayed during subsequent program executions. This allows you to instantly reexecute your code after making small tweaks, thereby tightening your feedback loop.<p>Furthermore, Leporello.js can serve as an interactive notebook. You have the flexibility to utilize any JavaScript libraries to visualize your data directly within your code.<p>For a more detailed walkthrough, please watch the product video. Currently, Leporello.js is available as a free online application that you can try right in your browser. My goal is to build the Leporello.js standalone Electron app and a VSCode plugin, both with TypeScript support. Additionally, I plan to add Node.js support (currently, Leporello.js is only for HTML5 apps). In the VSCode plugin, Leporello.js will sit on top of the built-in TypeScript/JavaScript mode, utilizing its code analysis information to enhance the default VSCode experience with unique Leporello.js features.<p>I am building Leporello.js as a single independent developer. Leporello.js is funded solely by donations. Support me on Github Sponsors [0] and be the first to gain access to the Leporello.js Visual Studio Code plugin with TypeScript support.<p>I'll be delighted to answer any questions you may have.<p>[0] <a href="https://github.com/sponsors/leporello-js">https://github.com/sponsors/leporello-js</a>

Show HN: Trigger.dev V2 – a Temporal alternative for TypeScript devs

Back in February, we posted a Show HN about building a “developer-first open source Zapier alternative” (<a href="https://news.ycombinator.com/item?id=34610686">https://news.ycombinator.com/item?id=34610686</a>). This was v1 of Trigger.dev.<p>During the months since, we’ve gathered a lot of feedback from early users and realized that what developers actually wanted was more like an easier-to-use Temporal with integrations.<p>Here’s what we’ve learned so far:<p>- Serverless timeouts make it hard for anyone to write reliable background jobs. So our current product makes that easy for Next.js and other full-stack React frameworks. Long-running server support is coming soon.<p>- We simplified the architecture to make it far easier to self-host. This was the most common comment in our previous Show HN.<p>- We made it much easier to contribute to. You can now add new API integrations for any service we don’t already support. Either publicly (we appreciate PRs) or privately in your existing codebase.<p>We’re open about what we’re building (<a href="https://trigger.dev/changelog">https://trigger.dev/changelog</a>) and what we’re planning on doing next (<a href="https://trigger.dev#roadmap">https://trigger.dev#roadmap</a>) as we believe community feedback ensures that we’re solving real problems.<p>So here’s where we’re at, and where we’re headed:<p><pre><code> [x] Easy self-hosting. [x] Serverless. Long-running Jobs on your serverless backend. [x] Integration kit. Build your own integrations, or use ours. [x] Bring-Your-Own-Auth. You can now authenticate integrations as your users. [x] Dashboard. View every Task in every Run. [x] Cloud service. No deployment required. [x] React hooks. Easily update your UI with Job progress. [x] React frameworks. Support for Next.js, Astro, Remix, Express. [ ] More frameworks. Support for SvelteKit, Nuxt.js, Fastify, Redwood. [ ] Background functions. Offload long or intense tasks to our infrastructure. [ ] Long-running servers. Use Trigger.dev from your long-running backend. [ ] Polling Triggers. Subscribe to changes without webhooks. [ ] And lots more… </code></pre> I’d love to hear your thoughts on background jobs. Have we missed anything off the list? What should we be building next?<p><a href="https://github.com/triggerdotdev/trigger.dev">https://github.com/triggerdotdev/trigger.dev</a>

Show HN: Trigger.dev V2 – a Temporal alternative for TypeScript devs

Back in February, we posted a Show HN about building a “developer-first open source Zapier alternative” (<a href="https://news.ycombinator.com/item?id=34610686">https://news.ycombinator.com/item?id=34610686</a>). This was v1 of Trigger.dev.<p>During the months since, we’ve gathered a lot of feedback from early users and realized that what developers actually wanted was more like an easier-to-use Temporal with integrations.<p>Here’s what we’ve learned so far:<p>- Serverless timeouts make it hard for anyone to write reliable background jobs. So our current product makes that easy for Next.js and other full-stack React frameworks. Long-running server support is coming soon.<p>- We simplified the architecture to make it far easier to self-host. This was the most common comment in our previous Show HN.<p>- We made it much easier to contribute to. You can now add new API integrations for any service we don’t already support. Either publicly (we appreciate PRs) or privately in your existing codebase.<p>We’re open about what we’re building (<a href="https://trigger.dev/changelog">https://trigger.dev/changelog</a>) and what we’re planning on doing next (<a href="https://trigger.dev#roadmap">https://trigger.dev#roadmap</a>) as we believe community feedback ensures that we’re solving real problems.<p>So here’s where we’re at, and where we’re headed:<p><pre><code> [x] Easy self-hosting. [x] Serverless. Long-running Jobs on your serverless backend. [x] Integration kit. Build your own integrations, or use ours. [x] Bring-Your-Own-Auth. You can now authenticate integrations as your users. [x] Dashboard. View every Task in every Run. [x] Cloud service. No deployment required. [x] React hooks. Easily update your UI with Job progress. [x] React frameworks. Support for Next.js, Astro, Remix, Express. [ ] More frameworks. Support for SvelteKit, Nuxt.js, Fastify, Redwood. [ ] Background functions. Offload long or intense tasks to our infrastructure. [ ] Long-running servers. Use Trigger.dev from your long-running backend. [ ] Polling Triggers. Subscribe to changes without webhooks. [ ] And lots more… </code></pre> I’d love to hear your thoughts on background jobs. Have we missed anything off the list? What should we be building next?<p><a href="https://github.com/triggerdotdev/trigger.dev">https://github.com/triggerdotdev/trigger.dev</a>

Show HN: Hardcover – Letterboxd for Books

Hi HN!<p>A little over two years ago, Goodreads announced they were shutting off access to their API. I was using it to show what I was reading on my blog at the time, and started looking for alternatives. I found a few that showed potential. I'd been using Letterboxd for a few years at that point and felt it had something that was missing from GR and the others I found, but I couldn't put my finger on it.<p>I decided to build it instead (I'm sure many creators can relate ). I made a post on the /r/cofounders subreddit about the idea, and found Ste. With me as a full-stack product dev and him on product design, we talked to hundreds of readers about what they want in a book tracking and social platform. We've listened to their feedback, tested and iterated constantly. We believe we've created a book space that feels as warm as a familiar library but as exciting as a midnight book launch party.<p>This past weekend we launched Hardcover on Product Hunt (and hit #3!). We describe Hardcover as a book tracking social network for readers to find new books, track what they read and make lasting connections with other readers. So, Letterboxd for books!<p>Here are a few of my favorite things you can do on Hardcover:<p>Find books - Search for books you know of, check out trending books, explore lists and prompts to find hidden gems, review your recommendations, stumble on friends reads in your feed, or browse all book by genre, mood or tag.<p>Decide what to read - Besides all the book facts you'd expect to see, we show you a personalized Match Score from 0% to 100% for each book based on your reading history. You'll also see ratings & reviews from readers you follow and readers most similar to you.<p>Track your reading - One place for every book you want to read, have read and more. You can set your privacy level to public, private (for a book?) or friends only. Use Airlists (our version of Airtable for Books) to further organize your library.<p>Log your reads - Rate and review books on a 5-star scale with half-star increments. Showcase your favorite books on your profile at hardcover.app/@username<p>Read even more - Set reading goals and explore your reading stats through charts and data visualizations to help keep you consistent and understand your own reading habits and tastes.<p>AI librarian, Bookle game, referral program, Goodreads/StoryGraph importer, GraphQL API, light/dark modes, an active Discord and so much more!<p>I'm excited to share and get feedback from the Hacker News community we've all been a part of for so long (even if I've mostly lurked here since 2009 ).<p>In terms of launch numbers (which I always love to see), here's our dashboard that shows how it went. We had about 250 new members join in the last 3 days, and a few new subscribers. We're still a ways away from being profitable. It costs us about $1,000/month to run Hardcover – even before salaries. We're about 30% of the way there.<p><a href="https://wp.hardcover.app/wp-content/uploads/2023/10/Screenshot-2023-10-02-at-11.50.41-AM-1024x532.png" rel="nofollow noreferrer">https://wp.hardcover.app/wp-content/uploads/2023/10/Screensh...</a><p>I'm most excited about the momentum from launch - seeing people share Hardcover with friends of theirs who read and growing the community. If you're a reader I'd love to invite you to join us! Any feedback, questions or comments are always welcome. I'm an open book, so feel free to ask me anything.<p>Adam <a href="https://hardcover.app/@adam" rel="nofollow noreferrer">https://hardcover.app/@adam</a>

Show HN: Anything World – AI for 3D auto-rigging and animation

Show HN: Anything World – AI for 3D auto-rigging and animation

Show HN: A new stdlib for Golang focusing on platform native support

No gc, No goroutines, Produces small binaries while using the unmodified official go toolchain, and comes with complete Web SDK (generated from w3c/webref).<p>We are building `pcz` to provide a reimagination of Go the language, in an effort to make it suitable for all kinds of programming tasks, and currently you can use it to build efficient web applications in Go using the generated Web SDK (as shown with the live web demo[1]).<p>The journey is just starting, any suggestions? or any critics?<p>[1]: <a href="https://primecitizens.github.io/livedemos/10-plat-web/" rel="nofollow noreferrer">https://primecitizens.github.io/livedemos/10-plat-web/</a>

Show HN: A new stdlib for Golang focusing on platform native support

No gc, No goroutines, Produces small binaries while using the unmodified official go toolchain, and comes with complete Web SDK (generated from w3c/webref).<p>We are building `pcz` to provide a reimagination of Go the language, in an effort to make it suitable for all kinds of programming tasks, and currently you can use it to build efficient web applications in Go using the generated Web SDK (as shown with the live web demo[1]).<p>The journey is just starting, any suggestions? or any critics?<p>[1]: <a href="https://primecitizens.github.io/livedemos/10-plat-web/" rel="nofollow noreferrer">https://primecitizens.github.io/livedemos/10-plat-web/</a>

Show HN: OpenStatus – Open-source monitoring with incident managements

Hey HN!<p>We’re Max and Thibault building OpenStatus.dev an OpenSource synthetic monitoring platform with incident managements<p>1 min demo: <a href="https://twitter.com/mxkaske/status/1685666982786404352" rel="nofollow noreferrer">https://twitter.com/mxkaske/status/1685666982786404352</a><p>We have just reached 2000 stars on GitHub<p><a href="https://github.com/openstatusHQ/openstatus">https://github.com/openstatusHQ/openstatus</a><p>We are really excited to hear your feedback/questions and connect further: our emails are max@openstatus.dev and thibault@openstatus.dev.<p>Thank you!

Show HN: OpenStatus – Open-source monitoring with incident managements

Hey HN!<p>We’re Max and Thibault building OpenStatus.dev an OpenSource synthetic monitoring platform with incident managements<p>1 min demo: <a href="https://twitter.com/mxkaske/status/1685666982786404352" rel="nofollow noreferrer">https://twitter.com/mxkaske/status/1685666982786404352</a><p>We have just reached 2000 stars on GitHub<p><a href="https://github.com/openstatusHQ/openstatus">https://github.com/openstatusHQ/openstatus</a><p>We are really excited to hear your feedback/questions and connect further: our emails are max@openstatus.dev and thibault@openstatus.dev.<p>Thank you!

Show HN: A example of running P2P network in browser (WASM+WebRTC+Chord DHT)

Show HN: A map that tells you if a NYC cafe has WiFi, a restroom, and an outlet

I am slowly adding more locations now. This is intended to be a crowdsourced map. Everyone is welcome to add more locations and provide comments/votes here.<p>Free people from going to a cafe for work only to leave because there's no wifi, restroom, or outlet!!<p>Demo: <a href="https://x.com/KSeisai/status/1708273554041504028?s=20" rel="nofollow noreferrer">https://x.com/KSeisai/status/1708273554041504028?s=20</a>

Show HN: A map that tells you if a NYC cafe has WiFi, a restroom, and an outlet

I am slowly adding more locations now. This is intended to be a crowdsourced map. Everyone is welcome to add more locations and provide comments/votes here.<p>Free people from going to a cafe for work only to leave because there's no wifi, restroom, or outlet!!<p>Demo: <a href="https://x.com/KSeisai/status/1708273554041504028?s=20" rel="nofollow noreferrer">https://x.com/KSeisai/status/1708273554041504028?s=20</a>

Show HN: Vanilla CSS Tailwind alternative in 18 lines

Show HN: Vanilla CSS Tailwind alternative in 18 lines

Show HN: Stargazers Reloaded – LLM-Powered Analyses of Your GitHub Community

Hey friends!<p>We have built an app for getting insights about your favorite GitHub community using large language models.<p>The app uses LLMs to analyze the GitHub profiles of users who have starred the repository, capturing key details like the topics they are interested in. It takes screenshots of the stargazer's GitHub webpage, extracts text using an OCR model, and extracts insights embedded in the extracted text using LLMs.<p>This app is inspired by the “original” Stargazers app written by Spencer Kimball (CEO of CockroachDB). While the original app exclusively used the GitHub API, this LLM-powered app built using EvaDB additionally extracts insights from unstructured data obtained from the stargazers’ webpages.<p>Our analysis of the fast-growing GPT4All community showed that the majority of the stargazers are proficient in Python and JavaScript, and 43% of them are interested in Web Development. Web developers love open-source LLMs!<p>We found that directly using GPT-4 to generate the “golden” table is super expensive — costing $60 to process the information of 1000 stargazers. To maintain accuracy while also reducing cost, we set up an LLM model cascade in a SQL query, running GPT-3.5 before GPT-4, that lowers the cost to $5.5 for analyzing 1000 GitHub stargazers.<p>We’ve been working on this app for a month now and are excited to open source it today :)<p>Some useful links:<p>* Blog Post - <a href="https://medium.com/evadb-blog/stargazers-reloaded-llm-powered-analyses-of-your-github-community-aef9288eb8a5" rel="nofollow noreferrer">https://medium.com/evadb-blog/stargazers-reloaded-llm-powere...</a><p>* GitHub Repository - <a href="https://github.com/pchunduri6/stargazers-reloaded/">https://github.com/pchunduri6/stargazers-reloaded/</a><p>* EvaDB - <a href="https://github.com/georgia-tech-db/evadb">https://github.com/georgia-tech-db/evadb</a><p>Please let us know what you think!