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Show HN: I'm a doctor and made a responsive breathing app for stress and anxiety

Hey HN! Some more info: I’m an NHS doctor and the founder of Pi-A (<a href="https://www.pi-a.io" rel="nofollow">https://www.pi-a.io</a>) which developed Lungy (<a href="https://www.lungy.app" rel="nofollow">https://www.lungy.app</a>). Lungy is an app (iOS only for now) that responds to breathing in real-time and was designed to make breathing exercises more engaging and beneficial to do. It hopefully has many aspects of interest to the HN community – real-time fluid, cloth and soft body sims running on the phone’s GPU.<p>My background is as a junior surgical trainee and I started building Lungy in 2020 during the first COVID lockdown in London. During COVID, there were huge numbers of patients coming off ventilators and they are often given breathing exercises on a worksheet and disposable plastic devices called incentive spirometers to encourage deep breathing. This is intended to prevent chest infections and strengthen breathing muscles that have weakened. I noticed often the incentive spirometer would sit by the bedside, whilst the patient would be on their phone – this was the spark that lead to Lungy!<p>The visuals are mostly built using Metal, with one or two using SpriteKit. There are 20 to choose from, including boids, cloth sims, fluid sims, a hacky DLA implementation, rigid body + soft body sims. The audio uses AudioKit with a polyphonic synth and a sequencer plays generated notes from a chosen scale (you can mess around with the sequencer and synth in Settings/Create Music).<p>There are obviously lots of breathing and meditation apps out there, I wanted Lungy to be different - it's about tuning into your surroundings and noticing the world around you, so all the visuals are nature-inspired or have some reference to the physical world. I didn’t like other apps required large downloads and/or a wifi connection, so Lungy’s download size is very small (<50MB), with no geometry, video or audio files.<p>Lungy is initially a wellness app, but I’d like to develop a medical device version for patients with breathing problems such as asthma, chronic obstructive pulmonary disease (COPD) & long COVID. Thanks for reading - would love to hear feedback!

Show HN: I'm a doctor and made a responsive breathing app for stress and anxiety

Hey HN! Some more info: I’m an NHS doctor and the founder of Pi-A (<a href="https://www.pi-a.io" rel="nofollow">https://www.pi-a.io</a>) which developed Lungy (<a href="https://www.lungy.app" rel="nofollow">https://www.lungy.app</a>). Lungy is an app (iOS only for now) that responds to breathing in real-time and was designed to make breathing exercises more engaging and beneficial to do. It hopefully has many aspects of interest to the HN community – real-time fluid, cloth and soft body sims running on the phone’s GPU.<p>My background is as a junior surgical trainee and I started building Lungy in 2020 during the first COVID lockdown in London. During COVID, there were huge numbers of patients coming off ventilators and they are often given breathing exercises on a worksheet and disposable plastic devices called incentive spirometers to encourage deep breathing. This is intended to prevent chest infections and strengthen breathing muscles that have weakened. I noticed often the incentive spirometer would sit by the bedside, whilst the patient would be on their phone – this was the spark that lead to Lungy!<p>The visuals are mostly built using Metal, with one or two using SpriteKit. There are 20 to choose from, including boids, cloth sims, fluid sims, a hacky DLA implementation, rigid body + soft body sims. The audio uses AudioKit with a polyphonic synth and a sequencer plays generated notes from a chosen scale (you can mess around with the sequencer and synth in Settings/Create Music).<p>There are obviously lots of breathing and meditation apps out there, I wanted Lungy to be different - it's about tuning into your surroundings and noticing the world around you, so all the visuals are nature-inspired or have some reference to the physical world. I didn’t like other apps required large downloads and/or a wifi connection, so Lungy’s download size is very small (<50MB), with no geometry, video or audio files.<p>Lungy is initially a wellness app, but I’d like to develop a medical device version for patients with breathing problems such as asthma, chronic obstructive pulmonary disease (COPD) & long COVID. Thanks for reading - would love to hear feedback!

Show HN: Signal-Android – A fork of Signal that provides SMS support

Signal was a brilliant app. It can send messages with rich media, host group chats, and even do voice and video calls, all with the peace of mind that comes from a proper secure messaging app. The best part was that you could still send messages to people who don't use Signal. Signal was the messaging app everyone wants - all the benefits of iMessage, without being siloed in one particular ecosystem.<p>Sometime leading up to October of 2022, the folks at the Signal foundation lost the plot. Signal has since dropped support for SMS, and is inexplicably adding "stories" to their personal messaging app. I despise this.<p>Instead of just complaining about it, I decided to do something about it. Here is a link to a version of the Signal Android app that still supports SMS, and doesn't have stories. There also isn't a stupid, nagging banner telling you to update. Right now, it's just Signal 5.38 with a couple lines commented out, but I plan to integrate any upstream security/UX improvements in the near future. For now, you'll have to build/install it yourself, but I will eventually put an APK out there for people to download. Enjoy!

Show HN: Refine v3.97 – Open-source React framework for building CRUD apps

Show HN: Automatisch – Open source workflow automation, an alternative to Zapier

Hey, HN community,<p>We're so excited to share Automatisch with HN finally. Automatisch is an open-source workflow automation tool, an alternative to Zapier. Together with my co-founder (@barinali), we have been working on it for about 15 months and have started getting early adopters.<p>Automatisch is a workflow automation tool that lets you connect different web services like Slack, Github, Twitter, and more to automate your business processes. For example, you can build automation that gets all new tweets, including the "open source" phrase, and post them to the Slack channel you specified. You can adjust the services and steps depending on what you actually need to automate in your business.<p>Even though some existing cloud solutions do the job well enough, we still wanted to build an open-source and self-hosted alternative to those. Because it allows you to store your data on your own servers, which is essential for businesses that handle sensitive user information and cannot risk sharing it with external cloud services. This is especially relevant for industries such as healthcare and finance, as well as for European companies that must comply with the General Data Protection Regulation (GDPR).<p>You can see the available integrations here (<a href="https://automatisch.io/docs/guide/available-apps" rel="nofollow">https://automatisch.io/docs/guide/available-apps</a>). We currently have limited integrations but are constantly working on adding more and enhancing the existing ones. You can also request a new integration by using GitHub discussions: (<a href="https://github.com/automatisch/automatisch/discussions/categories/integration-request">https://github.com/automatisch/automatisch/discussions/categ...</a>).<p>You can use the following links to check it out:<p>Website: <a href="https://automatisch.io" rel="nofollow">https://automatisch.io</a> Docs: <a href="https://automatisch.io/docs" rel="nofollow">https://automatisch.io/docs</a> GitHub: <a href="https://github.com/automatisch/automatisch">https://github.com/automatisch/automatisch</a><p>Please give it a try and let us know if you have any feedback, and if you like what we are doing with Automatisch, please give us a star on GitHub.<p>Cheers!

Show HN: Automatisch – Open source workflow automation, an alternative to Zapier

Hey, HN community,<p>We're so excited to share Automatisch with HN finally. Automatisch is an open-source workflow automation tool, an alternative to Zapier. Together with my co-founder (@barinali), we have been working on it for about 15 months and have started getting early adopters.<p>Automatisch is a workflow automation tool that lets you connect different web services like Slack, Github, Twitter, and more to automate your business processes. For example, you can build automation that gets all new tweets, including the "open source" phrase, and post them to the Slack channel you specified. You can adjust the services and steps depending on what you actually need to automate in your business.<p>Even though some existing cloud solutions do the job well enough, we still wanted to build an open-source and self-hosted alternative to those. Because it allows you to store your data on your own servers, which is essential for businesses that handle sensitive user information and cannot risk sharing it with external cloud services. This is especially relevant for industries such as healthcare and finance, as well as for European companies that must comply with the General Data Protection Regulation (GDPR).<p>You can see the available integrations here (<a href="https://automatisch.io/docs/guide/available-apps" rel="nofollow">https://automatisch.io/docs/guide/available-apps</a>). We currently have limited integrations but are constantly working on adding more and enhancing the existing ones. You can also request a new integration by using GitHub discussions: (<a href="https://github.com/automatisch/automatisch/discussions/categories/integration-request">https://github.com/automatisch/automatisch/discussions/categ...</a>).<p>You can use the following links to check it out:<p>Website: <a href="https://automatisch.io" rel="nofollow">https://automatisch.io</a> Docs: <a href="https://automatisch.io/docs" rel="nofollow">https://automatisch.io/docs</a> GitHub: <a href="https://github.com/automatisch/automatisch">https://github.com/automatisch/automatisch</a><p>Please give it a try and let us know if you have any feedback, and if you like what we are doing with Automatisch, please give us a star on GitHub.<p>Cheers!

Show HN: Automatisch – Open source workflow automation, an alternative to Zapier

Hey, HN community,<p>We're so excited to share Automatisch with HN finally. Automatisch is an open-source workflow automation tool, an alternative to Zapier. Together with my co-founder (@barinali), we have been working on it for about 15 months and have started getting early adopters.<p>Automatisch is a workflow automation tool that lets you connect different web services like Slack, Github, Twitter, and more to automate your business processes. For example, you can build automation that gets all new tweets, including the "open source" phrase, and post them to the Slack channel you specified. You can adjust the services and steps depending on what you actually need to automate in your business.<p>Even though some existing cloud solutions do the job well enough, we still wanted to build an open-source and self-hosted alternative to those. Because it allows you to store your data on your own servers, which is essential for businesses that handle sensitive user information and cannot risk sharing it with external cloud services. This is especially relevant for industries such as healthcare and finance, as well as for European companies that must comply with the General Data Protection Regulation (GDPR).<p>You can see the available integrations here (<a href="https://automatisch.io/docs/guide/available-apps" rel="nofollow">https://automatisch.io/docs/guide/available-apps</a>). We currently have limited integrations but are constantly working on adding more and enhancing the existing ones. You can also request a new integration by using GitHub discussions: (<a href="https://github.com/automatisch/automatisch/discussions/categories/integration-request">https://github.com/automatisch/automatisch/discussions/categ...</a>).<p>You can use the following links to check it out:<p>Website: <a href="https://automatisch.io" rel="nofollow">https://automatisch.io</a> Docs: <a href="https://automatisch.io/docs" rel="nofollow">https://automatisch.io/docs</a> GitHub: <a href="https://github.com/automatisch/automatisch">https://github.com/automatisch/automatisch</a><p>Please give it a try and let us know if you have any feedback, and if you like what we are doing with Automatisch, please give us a star on GitHub.<p>Cheers!

Show HN: A simple world flags game, my first web dev project as a beginner

Show HN: A simple world flags game, my first web dev project as a beginner

Show HN: A simple world flags game, my first web dev project as a beginner

Show HN: I “wrote” a kid's book with ChatGPT and Midjourney

Two of my friends recently welcomed their first child and I "wrote" a kid's book for them using ChatGPT for the story and Midjourney for illustrations.<p>The plot was sourced from a group of friends.

Show HN: I “wrote” a kid's book with ChatGPT and Midjourney

Two of my friends recently welcomed their first child and I "wrote" a kid's book for them using ChatGPT for the story and Midjourney for illustrations.<p>The plot was sourced from a group of friends.

Show HN: I've built a C# IDE, Runtime, and AppStore inside Excel

The project is called QueryStorm. It uses Roslyn to offer C# (and VB.NET) support in Excel, as an alternative to VBA. I've posted about it before, but a lot has changed since then so figured I'd share an update.<p>The current version includes a host of new features, namely a C# debugger, support for NuGet packages, and the ability to publish Excel extensions to an "AppStore" (which is essentially a NuGet repository). The AppStore can be used by anyone with the (free) runtime component.<p>Another great addition is the community license, which is a free license for individuals and small companies to use. It unlocks most features, but it isn't intended for companies with more than 5 employees or over $1M in annual revenue.<p>I would love to hear your feedback and am happy to answer any technical questions about how QueryStorm is implemented.

Show HN: I've built a C# IDE, Runtime, and AppStore inside Excel

The project is called QueryStorm. It uses Roslyn to offer C# (and VB.NET) support in Excel, as an alternative to VBA. I've posted about it before, but a lot has changed since then so figured I'd share an update.<p>The current version includes a host of new features, namely a C# debugger, support for NuGet packages, and the ability to publish Excel extensions to an "AppStore" (which is essentially a NuGet repository). The AppStore can be used by anyone with the (free) runtime component.<p>Another great addition is the community license, which is a free license for individuals and small companies to use. It unlocks most features, but it isn't intended for companies with more than 5 employees or over $1M in annual revenue.<p>I would love to hear your feedback and am happy to answer any technical questions about how QueryStorm is implemented.

Show HN: I've built a C# IDE, Runtime, and AppStore inside Excel

The project is called QueryStorm. It uses Roslyn to offer C# (and VB.NET) support in Excel, as an alternative to VBA. I've posted about it before, but a lot has changed since then so figured I'd share an update.<p>The current version includes a host of new features, namely a C# debugger, support for NuGet packages, and the ability to publish Excel extensions to an "AppStore" (which is essentially a NuGet repository). The AppStore can be used by anyone with the (free) runtime component.<p>Another great addition is the community license, which is a free license for individuals and small companies to use. It unlocks most features, but it isn't intended for companies with more than 5 employees or over $1M in annual revenue.<p>I would love to hear your feedback and am happy to answer any technical questions about how QueryStorm is implemented.

Show HN: Todo list inspired by GitHub’s contribution calendar

Made this todo list + calendar heat map over a couple of weekends, so its rough, but should be valuable enough to be used.<p>Currently stores data in local storage, but I'm working on persisting data with auth + a database.<p>Features coming in the couple weeks: (1) Search, (2) Categories.<p>Hope you find it useful!

Show HN: Realtime GPU-powered implicit function plotter in your browser

OpenDolphin: Contribute to a truly open social network

Show HN: Infisical – open-source secrets manager for developers

Two months ago, we left our jobs at AWS and Figma to continue building Infisical.<p>It is an open-source end-to-end encrypted tool that helps you manage developer secrets across your team, devices, and infrastructure.<p>During the previous Show HN, we got a lot of useful feedback which we’ve been iterating on A LOT!<p>In the past month, we’ve been pretty much working 24/7, and we added: - Integrations for Vercel, Netlify, GitHub Actions, Render, and Fly.io - Public API - User activity logs - Point-in-time recovery and secret versioning - Custom environments - Kubernetes operator (<a href="https://infisical.com/docs/integrations/platforms/kubernetes">https://infisical.com/docs/integrations/platforms/kubernetes</a>) And made lots of other performance improvements both on the frontend and backend.<p>Our repo is published under the MIT license so any developer can use Infisical. The goal is to not charge individual developers. We make money by charging a license fee for some enterprise features as well as providing a hosted version and support.<p>In the coming weeks, we plan to add features like key rotation, alerts, and secret groups - as well as continue adding more integrations.<p>Give it a try (<a href="https://github.com/Infisical/infisical">https://github.com/Infisical/infisical</a>)! We’d love to hear what you think!<p>Main website: <a href="https://infisical.com/">https://infisical.com/</a>

Show HN: Infisical – open-source secrets manager for developers

Two months ago, we left our jobs at AWS and Figma to continue building Infisical.<p>It is an open-source end-to-end encrypted tool that helps you manage developer secrets across your team, devices, and infrastructure.<p>During the previous Show HN, we got a lot of useful feedback which we’ve been iterating on A LOT!<p>In the past month, we’ve been pretty much working 24/7, and we added: - Integrations for Vercel, Netlify, GitHub Actions, Render, and Fly.io - Public API - User activity logs - Point-in-time recovery and secret versioning - Custom environments - Kubernetes operator (<a href="https://infisical.com/docs/integrations/platforms/kubernetes">https://infisical.com/docs/integrations/platforms/kubernetes</a>) And made lots of other performance improvements both on the frontend and backend.<p>Our repo is published under the MIT license so any developer can use Infisical. The goal is to not charge individual developers. We make money by charging a license fee for some enterprise features as well as providing a hosted version and support.<p>In the coming weeks, we plan to add features like key rotation, alerts, and secret groups - as well as continue adding more integrations.<p>Give it a try (<a href="https://github.com/Infisical/infisical">https://github.com/Infisical/infisical</a>)! We’d love to hear what you think!<p>Main website: <a href="https://infisical.com/">https://infisical.com/</a>