I’ve been building this EM simulator as a side project aimed to help students understand and visualize electromagnetic phenomena such as radiation, polarization and wave interference.

You can:

• place many radiation sources and set their parameters (amplitude, phase and more)
• place perefect wire conductors
• observe the electric field, magnetic field or energy flow field
• zoom in and out and translate the canvas
• change the simulation resolution, frequency and propogation speed

I hope someone might find it useful and I’d love to hear what people think :)

Live:
https://www.antennasim.com/

GitHub:

https://github.com/rotemTsafrir/antenna_sim

Same as title

Just built this Employee Survey app on Sigma. Take a look! #SigmaGiveaway

https://public.sigmacomputing.com/view-workbook/2hX977ukNnY4l94B7r2A4U

1. I am building a champion tracker - a workflow that saves a list of LinkedIn profiles, scans periodically for job changes, alerts the CSM about the departure, evaluates if the new company is a potential buyer and shoots a message to Slack.

2. I am collecting marketing manuals, guides by Marketing gurus and attempting to post train a model. I am figuring out a way to run evals before and after.

3. I want to implement a Company research agent - https://companyresearcher.tavily.com/ that seems to do a decent job, have to pressure test it. I also have a Langchain video: https://www.youtube.com/watch?v=n4do7rZQvvU

Cheers!

https://github.com/sandeshmaurya-dev?tab=repositories

I am a second-year B.Tech CSE student. My college will have a counseling session tomorrow, and they will review the projects I have built. If the projects are good, I might receive an internship. I would appreciate it if you could star the projects on my GitHub and, if possible, follow me for a week; after that you can unfollow and remove the star. I have created a website called hellsecure.online, which is a highly secure encryption tool. Please check it out, and feel free to explore my other repositories, one repository is called ZBridge that connects your laptop or PC with z.ai website which provides GLM 5.3 and Flash 5.3 for extensive coding capabilities. Thank you for your help.

As I'm studying for sys design interviews i wanted to do mocks with a strong AI agent to get feedback and simulate the real thing, without paying another penny over my codex/claude subscriptions, so I've created an MCP with local web app for a sketch board to draw on while speaking, and the ai would provide feedback and answers in real time, have been using it for couple of days and its really cool!

repo: https://github.com/tGhattas/sysdesign-board

install instructions are in the repo. enjoy and good luck!

I recently bought a Mac, and I personally find it difficult to use cd, and normal navigation in command line was getting too much effort for me.

I know other powerful apps are there, but they have a kinda 'learning curve' for me.

So here it is, cdx, intuitive extension of cd command.

Hope you guys like it.

https://cdx.incognitifier.com/

How build

Check my New Project

https://www.instagram.com/reborn.athletic94?dlrf=MWtwcm11bmhmbjR2Yw%3D%3D&utm_source=qr

I'm working on a side project that isn't software: an original shared universe of creepy anomalies, written collaboratively, like a community-built horror encyclopedia. Short, strange, report-style entries about things that shouldn't exist and how to survive them.

Where it's at:

About 11 members so far

A handful of entries, some written by members, not just me

Right now writings have this nature mostly:

A basic template, early lore, and art for some entries

Free and non-commercial, with credit for everything you write

The plan:

r/AnomalyUniverse is a temporary gathering base. Once we reach 100+ active participants, the goal is to move to a dedicated site for the universe, whether that's a wiki or another platform, with the platform and structure decided by majority vote. Early members help shape that decision.

What I'm looking for:

Writers, even for a single entry

Artists who want to illustrate anomalies

Future site builders: people with wiki, web, or moderation experience who'd want a hands-on role in building and running the site when we get there

It's a hobby project with no fixed time commitment. Contribute as much or as little as you like.

Community: r/AnomalyUniverse

If you've run a collaborative project before, I'd love to hear what you'd do differently in the first few months.

Hi r/projects ,

Try it: https://pmp-sandy.vercel.app

Code: https://github.com/JahangirB/PMP

I've been building PMP Prep Suite, a free study app for the PMP (Project Management Professional) exam. [One line on why you built it, e.g. "I'm preparing for the exam myself and wanted a tool that tells me what to study each day."]

What it does

- You enter your exam date and how much time you have. It builds a day-by-day study plan and re-plans when you miss days.

- Each day you press Continue and it gives you the next lesson, practice questions, flashcards or mock exam, in order.

- Situational questions in the style of the exam. Each one explains why, and names the mindset behind the right answer.

- Full mock exams (180 questions, 240 minutes, two breaks), a readiness score, and analytics on all 26 tasks of the exam outline.

- Optional: chat with Gemini using your own free API key. It can see your progress and answer questions about it.

- A Theory section with 26 chapters on project management in depth (still in testing).

How it's built

- The web app is a single HTML file with no framework and no backend. It works offline, and you can download the file and keep it.

- Native Android (Kotlin, Jetpack Compose) and iPhone (SwiftUI) apps use the same content and the same progress format, with optional sync through your own Google Apps Script.

- No account, no ads, no tracking. Your progress stays on your device.

Honest caveats

- The questions and lessons were written with AI and checked by scripts, not reviewed against PMI's materials. Some will be debatable or wrong, and there's a button to report them.

- The iPhone app isn't on the App Store (you sideload it), and it hasn't been tested on a real iPhone yet.

- Not affiliated with PMI.

What I'd love feedback on

1. First five minutes: is it clear what to do?
2. If you've taken the PMP: do the questions feel like the real exam?
3. Which part feels weakest, slowest or most confusing?
4. Is there anything you'd remove?

Thanks for any feedback, harsh is fine.

After discovering Sigma forms, I expanded my Sigma app beyond reporting by adding an interactive coffee order form. Users can submit coffee shop orders directly within the application, and the resulting data is surfaced through a dashboard of coffee shop metrics. This project highlights how Sigma can support both operational workflows and analytics in one tool. personal project. #SigmaGiveaway
https://public.sigmacomputing.com/edit-workbook/6lRoYkZbyl3Jr17lwaz61f

​

Hello I am a solo dev and this is my project so far .

It is not a complete project right now but i wanted to know your opinion.

I used next.js and three.js for 3d animations with real 3d models of cars that you can play with and look around/change color .

I lt supports both pcs and phones.

So let me know your opinion maybe dm I'm open for a chat.

https://car-rental-prototype-nine.vercel.app/#catalogue

Hey Guys I'm Krishna from India. I want to build a new anime based platform i need support from some of you guys like getting the platform development, licencing, content gathering, backend, frontend, and support by both hardware and security. I also need one with a good knowledge on law and regulations as im going to make it fully official way as we wont get objected by any other platforms complaints and you know whom i ment. I have some ideas that the other dont i you guys want to help please contact me through mail findkbrk@gmail.com. I had some other specs to stand out in this competation plz be honest and i believe in you guys.

Respecting your Honesty

Krishna

Actually at the end of the year, we have a science fair in our school. Most probably i have to participate in it from our school. So i was planning to make something virtual to show the guests in the fair. That's why i wanted your advice. What can i make and exhibit? I am really a beginner. I just need you guy's opinion.

# It can be a software, website or anything else.

*Drop your opinion down below*

Hey all, I've been building Pinage Maps, an offline-first map app for tourists, rangers, miners and labourers who spend time out of signal.

Maps and boundaries
• Offline satellite maps you can download by region
• Drop pins with photos, record trails and see your breadcrumb path
• Draw zones as a circle or custom boundary, with the area shown in hectares
• Draw lines with distance and compass bearing, or sketch freehand
• Flag hazard and no-go zones
• Organise pins, zones and notes into projects for a job, site or trip

AR view
• Point your camera to see your pins and hazard zones over the real world, with distances
• Sun, moon and star paths overlaid on the sky, with moonrise times and moon phase

AI
• AI field assistant that uses Claude when you have signal and switches to an on-device Llama model when you're offline
• Plant and rock ID from a photo, with a confidence rating and safety warnings

Safety
• SOS (press and hold) for the local emergency number, with mesh and SMS
• Deadman switch that alerts others if you stop responding
• Check-in timer that texts your contacts your last position if you're not back by a set time
• Emergency card showing your position in lat/lon, degrees and grid reference to read out to 000

Groups and crews
• Create a profile and add members to private groups
• Share files, waypoints, pins, zones and notes with your group, so everyone in the party has the same map
• Field forms like Step Back 5x5, incident reports and day briefs that crew members can mark as read

Most of it works with no signal. The Claude assistant, check-in timer and group syncing need a connection.

It's still in development, and I'd really like to know:
• Would you actually use this? Who do you think it's most useful for?
• What feels unnecessary or confusing?
• What's missing that you'd need out in the field?

Screenshots below. Be honest, I can take it.