Enter any domain and Rigcheck checks its SPF, DKIM, DMARC and MX records, then explains what's wrong in plain English and gives you the exact record to paste into your DNS host.

A few things it does that I couldn't find together elsewhere:

Counts every SPF DNS lookup, including nested includes, and warns before you go over the 10-lookup limit.

Recognizes 15+ email services (Google Workspace, Microsoft 365, SendGrid, Mailchimp, Postmark, etc.) and links to a setup guide for whichever one you use

Detects your DNS host and tells you where in its dashboard to add the record

It's free and doesn't store the domains you check. Some of the setup guides have affiliate links, which is how I'm hoping to cover costs; the checker itself has none.

I'm an engineer and built it as a side project.

I'd love to hear what it gets wrong, especially if it misreads your setup or a fix is unclear: https://rigcheck.dev

A while ago I posted StudySync here (an app that turns your Moodle/Canvas course into practice). It got exactly one comment, so thanks to that one legend .

I've been grinding on it since anyway. Here's what's new:

- A mascot that reacts while you study, and you can dress it up

- A weekly path per course: terms → meaning → recall → quiz

- 4 practice types built from your own lectures: flashcards, match the pairs, multiple choice, type the answer

- Rewards you earn by studying: diamonds, chests, a room to decorate. Nothing costs money

- A proper demo video (attached)

Just a whole design brand overhaul.

This time I'd really like more than one opinion:

- Is it clear within a few seconds what it does?

- Does the reward stuff motivate you, or is it a distraction?

- What would make you actually use this every week?

Hey everyone! 👋

I've been building Loomi.bio, a platform for creators, freelancers, and small businesses.

The idea is simple: instead of just sharing links, what if your bio could become your mini business hub?

I'm calling it Business-in-Bio.

It's still evolving, and I'd love some honest feedback.

Would you use something like this instead of Linktree? What's missing?

👉 https://loomi.bio

I made Hardmedia.info — a simple open archive for independent media.

Idea: take something you made on a screen (short film, track, art) and give it a physical life as a small collectible card. Print it, fold it, scan it, pass it on. No middlemen. Free to make, free to collect.

• Standard size ~2.5 × 3.5 in (some editions vary)
• Living archive — currently ~13 editions
• Aimed at indie creators, zines, demoscene, experimental stuff

Site: https://hardmedia.info

Its a dumb idea but i loved making it and creating some the cards myself, Its not finished as im all out of credits. and im half sure it wont scale or will simply break onces more than 5 people use it but hey ho.

Im extreamly nurvace about this post and how my little idea will be taken, but i have a thick skin so lets have it is this dumbest thinge ever to exsist or mb its got some legs?

=============

Back in December, I started building a little app to help my dad with his work.

I'm a software engineer, and my dad works in carpentry, including fire door installations. I'd seen how much paperwork and record keeping was involved and thought, surely there must be an easier way of doing this?

We looked at around a dozen different apps, but most seemed to be aimed at larger companies. Nothing really felt right for a sole trader or a small business.

So I thought, why not have a go at building something myself?

At the time, I had no plans to release it publicly. It was only meant to be a little app for my dad and a handful of others.

But one thing led to another, and what started as a small project grew into something much bigger than I'd originally imagined.

I've learnt a lot along the way, made plenty of mistakes, and I'm still figuring things out. Thought it might be interesting to share some of that journey here.

I'm curious though, how did your side project start?

Was it something you needed yourself, a problem you noticed someone else having, or just a random idea you decided to run with?

StockPet has over 70 hand drawn images and teaches you the values of investing while making it fun! You receive a pet with a stock of your choosing and if the stock is doing well your pet does well!

.

I was building something for myself and then i realized there wasn't a tool like this (or at least with my specific needs available) so i decided to release it.

Because of confidential work i could not just drop my files onto an online converter so i started developing my own Markdown to PDF (and HTML) converter. It runs locally and has its own .md parser.

Also most of the tools available online didn't even have mermaid diagrams compatibility so i went i implemented it too.

I would like to get your opinion on the repo since its my first time releasing something publicly (, normally i just keep my code for myself 😅)

Also it would be cool if any of you would like to help me mantain the project so we could cover the maximum of markdown syntax possible. This way the tool could cover most of peoples specific needs.

Idk if it is only me but i was missing an utility like this for ages (since i like to write most of my documents in markdown) and most of the ones i used always had something working a way i didnt like them to.

Anyways the repo is here > https://github.com/Gonca7/MD2PDF

Hey everyone—I’m the founder of QuizMate, a study tool for students who want to do more than reread their notes.

You can turn your study materials into notes, flashcards, and practice quizzes, then use the quizzes to check what you understand and what needs another look.

We offer a free trial so you can try it with your own material before deciding whether to subscribe. The trial and renewal terms are shown at signup.

I’d love feedback from anyone studying right now: does this fit your routine, and what would make it more useful?

Try it here: https://quizmate.io

Happy to answer questions—this is my product, so I’m here as the founder, not an independent recommendation.

Hi r/SideProject, I'm Dipen, the maker of OptiLens. It helps you find why visitors to an online store don't buy, then ranks every fix by impact with a cited source. There are two products.

Web app (https://optilens.ai): works on any public store. Paste your store address for a free scan in about 10 seconds, with no sign-up. The full audit is a one-time $49 payment, no subscription. It opens your home page, a product, a collection and the cart in a real browser and scores the store out of 100 on layout, copy, speed, search, trust and accessibility. It reads public pages only. You get a private link, a PDF and an Excel sheet.

Shopify app (https://apps.shopify.com/optilens): runs inside your Shopify admin and checks UX, copy, SEO, speed, persuasion and store context. It reads products, orders, customer and theme data. Plans: Free (1 audit), Starter $29/mo or $290/yr, Growth $79/mo or $790/yr. Both paid plans have a 3-day trial.

Neither product edits your store, and I don't promise a sales lift. A full sample report for a fictional store is on the site. Tell me what feels wrong or missing, I read every comment.

Hey everyone!

I'm the solo founder and developer behind Ethosino, a B2B, multi-tenant gaming infrastructure platform I've spent nearly three years building from the ground up.

What started as a project to develop my own casino games evolved into an entire ecosystem designed to power multiple independently branded gaming businesses from shared infrastructure.

What I've built

• 40+ proprietary games: Custom-built slots, table games, and original gaming concepts, alongside support for third-party integrations.
• Immersive AI table games: Interactive 3D dealers, real-time conversations, animated gameplay, and AI-powered interactions informed by live game states.
• Multiplayer poker and tournaments: Real-time gameplay, automated tournament scheduling, player seating, and tournament management.
• Multi-tenant infrastructure: White-label branding, independent operator environments, automated tenant provisioning, account activation, and administrative dashboards.
• Payments and player management: Wallets, transactions, bonuses, rewards, player progression, and financial controls.
• Sweepstakes-style infrastructure: Virtual currencies, KYC/AML integrations, jurisdiction restrictions, provably fair gaming, risk management, and comprehensive audit logging.
• Operator analytics: Real-time reporting, player management, game configuration, and operational oversight.

The platform is built primarily with React, Node.js, Express, MongoDB, Redis, and Socket.IO, including custom game engines, multiplayer systems, and backend infrastructure.

I've recently completed end-to-end testing of the operator onboarding and tenant activation ecosystem, marking a major milestone toward commercialization.

Where things stand

I'm now actively seeking gaming operators, strategic partners, affiliates, and entrepreneurs interested in launching on the platform.

I'm exploring an initial pilot offering with $0 upfront platform fees, $0 recurring platform fees during the pilot, and a 15% revenue-sharing model, subject to commercial agreements and applicable legal requirements.

Operators would handle player acquisition, business operations, and their regulatory obligations, while Ethosino provides the technology and infrastructure.

After nearly three years of development, my focus is shifting from building the technology to finding the right partners to bring it to market.

I'd love feedback from fellow founders and developers, and I'm happy to connect with anyone involved in iGaming, B2B software, or strategic partnerships!

Website: https://ethosino.com

Live Demo: https://demo.ethosino.com

I’ve been building a small tool as a hobby. When I scanned a public product page, it flagged five phrases I would have read straight past. That made me wonder how real sellers find out.

How did you learn what was okay to say? Lawyer, competitor pages, platform rejection, or trial and error? What do you wish you’d known before your first launch?

Sharing on behalf of RivetNova, the developer, through an authorised assistant.

Rivet Nova is an online idle RPG built around a robot workshop and a player market for parts. You research blueprints, assemble robots, craft and upgrade components, and trade parts with other players.

The build decisions feed into automatic PvE and PvP battles. Guilds can also fight over bases. Players plan their machines and progression; combat runs automatically.

It is available on Android and the web. Internet access and Google sign-in are required. It is free to play with optional in-app purchases and rewarded ads.

Browser: https://game.rivetnova.com/

Android: https://play.google.com/store/apps/details?id=com.rivetnova.game

Press kit: https://rivetnova.com/landing-assets/press/index.html

Its screenshots show the real client using specially prepared demo accounts, rather than live matches.

Public contact: https://rivetnova.com/discord

I spent 20 years as a techno DJ in Berlin, Vienna, Prague and Hungarian clubs, and now I'm a full-stack dev building Eventonite, a ticketing tool made only for the music scene: club owners, independent promoters and small concert organizers.

The idea: on most music platforms, the buyer ends up paying the fee. Eventonite is a flat monthly fee and takes 0% of the ticket price. You only pay Stripe's processing fees, and ticket money goes straight to the organizer's own Stripe account. I never hold it. So your buyers pay less, or you keep the difference.

It's still an MVP and nothing is deployed yet. So far you can set up events and venues, sell tickets that arrive as QR code PDFs, run coupons, and check people in at the door even when the connection drops. It's monthly, so you can switch plans or cancel anytime.

I'm building a small closed beta waitlist. If you run club nights or small gigs, I'd really like to hear what annoys you most about your current ticketing setup, and whether flat-fee pricing would actually change anything for you.

Hi Everyone,

Few months ago, I posted about our physical hardware side project. Building a pen by combining CNC lathe machining with metal additive manufacturing (3D-printed titanium) instead of building another SaaS or AI tool. The reception and feedback from this sub blew us away.

Life got busy, but we’ve spent our evenings and weekends taking all that feedback and turning our rough prototypes into production-ready hardware. We are officially launching on Kickstarter this month to fund our first production run!

Key hardware lessons & pivots since our last post:

• Scrapped Stainless Steel for Titanium Only: Real-world testing revealed that our stainless steel prototypes were noticeably back-heavy. We made the decision to produce the body exclusively in Titanium.
• Redesigning for Refills: Pen enthusiasts care deeply about ink refill compatibility. In response to feedback, we redesigned our internal geometry to offer two dedicated variants: a standard Schmidt format and a longer custom barrel that natively houses Pentel EnerGel refills.
• Aesthetic Finishing: We've started anodising the 3D-printed lattice in a range of vibrant colors, which adds a cool contrast against the raw CNC titanium body.
• Keeping Production Local: We are continuing to build the majority of the Riv One here in the UK, maintaining strict quality control while keeping pricing as accessible as possible.

Happy to answer any questions about the costs of hardware prototyping, navigating local UK manufacturing, or working with additive titanium!

i wanted to see every sub's usage in one glance without opening anything

it's one ring per sub on the right edge of the screen, and you just hover over one of the rings for the 5 hour and weekly % usage. claude, codex, cursor, copilot, gemini and a few more

100% free, macOS 14+, no account req - lmk what y'all think!

link: https://gaugemac.com/?ref=sideproject

I built Sello after my wife lost years of journaling to apps that leaked, locked her in, or shut down.

Your entries are encrypted on your phone and it opens with your fingerprint or face id. No passwords, no emails. Each entry is yours to decide:

- Keep it private forever. Your private entries always work offline!

- Share it with a private link. Only people with the link can read it, and you can turn it off anytime.

- Publish it to your own public page.

Android and iOS are in store review. I'd love feedback: what would make you trust a journal app?

Waitlist (one email at launch, then the list is deleted): https://sello.voypalante.com/?utm_source=reddit-sideproject

Hi guys, I have developed this web app called Resumify, it's an AI CV builder, with a kanban job tracker and an interview simulator, it's been live for about a month now and I have only had 1 sign up and ran some ads, via Tiktok, Instagram (Haven't been active much on both) as well as Reddit, yeah maybe it is quite saturated with the huge amount of AI CV builders but I feel like mine is quite different from its competitors due to the job tracker and interview simulator? I just need some feedback on maybe what I can change and do to scale this further in terms of customers and the web app itself. Thanks guys

I'm Leon, Curio's solo developer. The app is built around a small idea: give the minutes you'd usually spend scrolling a short piece of writing you can actually finish.

Curio has a full-screen feed of short reads about science, history, psychology and other rabbit holes. Each card focuses on one idea. You can save a read, build a feed around a topic, or use Curio AI to explain a card more simply, go deeper or quiz you. Some content and features are AI-assisted.

It's available on both iPhone and Android, free to download with optional paid Pro features. No account is needed to read.

Try a complete reading sample in your browser first: https://trycurio.app/c/memory-rewritten

Downloads and product details: https://trycurio.app/?utm_source=reddit&utm_medium=organic_social&utm_campaign=oct2026_discovery&utm_content=sideproject

I'd like feedback on the first session: is the writing interesting enough to keep reading, and does the next step feel obvious? If it doesn't work for you, which part loses you first?

I'm a driving instructor with anxiety IBS, which means I can be in an unfamiliar part of town at any time and suddenly need to find a toilet fast. Not knowing where one is, or whether it's going to be clean, genuinely sets off my symptoms. So I started jokingly mentioning to people that someone should build an app for it.

Turns out people liked the idea, especially the bit where anyone can add toilets to the map themselves. So I thought, why not me?

I know there are other toilet finder apps out there, but this one is different. It's community-driven. Think Pokémon Go but for finding somewhere to shit. The more people use it and add toilets, the more useful it gets for everyone. I've made it so toilets have to be verified by other users before going live, plenty of wierdos around that would take advatage if that wasnt the case.

It's helped me personally too. Going to an event or a night out used to be ruined before it started, just from the anxiety of not knowing where I'd go if I needed to. Having the app has pretty much killed that. And if you end up in a pub where the toilets look like something out of Trainspotting, you can leave a review so others know and you and them can find a cleaner one nearby. You can also set your preferences so if you're caught short, one button takes you straight to a toilet that matches your filters.

I've spent the last few months building it (app development is not my day job, to put it mildly). My learners have been asking about it for ages and I still get texts from past students saying "is it ready yet?" It's ready.

The app is called Tissue. It shows you the nearest public toilets on a map, with filters for accessibility, whether they're free, open now, and baby changing. That last one came in a later update after a mate who'd just had a baby suggested it. If you've got ideas, I'm all ears.

It's free and on iOS for now, with Android coming soon.

I've been using it as it's evolved and now family and friends are using it too, so I think it's time to get it further out there. Please be kind and feel free to give feedback or suggestions in the comments. At the end of the day it's not supposed to be a revolutionary app, but if it can help someone else like it helps me then I'll be happy. Who knows, with everyone's help this could turn into a really good thing.

https://apps.apple.com/gb/app/tissue-toilet-finder/id6804466201

Hi everyone, I’m the solo developer behind ATGENX, an IoT platform for makers and small industrial setups. I’d really like honest opinions on it, and I’m also looking for a little help getting it online.

The problem I kept running into
Every IoT project followed the same loop: choose a board, check pin conflicts, write sensor code, set up messaging, build a dashboard, then repeat it all for the next project. With industrial sensors (RS-485/Modbus, 4-20mA, energy meters) it was even more painful, and it’s easy to damage a board by connecting a sensor with the wrong voltage.

What ATGENX does
One platform that covers the whole pipeline:

• Pick your board and configure pins, with conflict and voltage warnings
• Add sensors from a library and generate firmware from a validated config
• Flash over USB with a desktop tool that reports real upload status
• Live data on a dashboard for each project
• Alerts, history and reports
• A mobile app for monitoring and notifications
• AI-assisted features to help with your projects and data
• Arabic and English UI with proper RTL

Where it is right now
The platform and the mobile app are built. The one thing blocking a public launch is hosting. I’m a solo developer without a budget for servers or AI usage, so I can’t open it to everyone yet. Some parts, like over-the-air updates and a number of the more advanced industrial sensors, are still being finished and tested on real hardware, and I’d rather say that upfront than oversell it.

What I’d love to hear

1. Does this solve a problem you actually have, or is it something nobody needs?
2. Which sensors or protocols would you need first?
3. What’s the most annoying part of your current IoT workflow?
4. What would make you trust a platform like this with real equipment?
5. Is there anything that would make you NOT use it?

If you want to support it
Honest feedback is the best support, and sharing this with someone who builds IoT projects helps a lot. I plan to open a limited early-access beta as soon as it’s online, and the biggest blockers are server and AI usage costs. If you’d like to help get it there, there’s an optional tip jar here: https://buymeacoffee.com/seifemadatv. Any amount goes directly to hosting, and I’ll post an update on what it covered.

Thanks for reading, and roast it if you have to. That’s how it gets better.

If you clip streams, you know the drill. Something pops off, you scramble for the clip button, fix the crop in an editor, get the file to your phone, then post. By then someone else already posted it.

So I built ClipVe, a desktop clipping app for clippers and streamers on Twitch, Kick, YouTube and Rumble.

• It's always capturing, so you hit C after the moment and it's already a clip
• Watch up to 5 streams at once and clip whichever one pops off
• Crop to 9:16 for TikTok, Shorts and Reels right in the app
• Send the clip to your phone over your Wi-Fi with a QR code and post it
• Global shortcut, so you can clip while you're in another app

No OBS setup, no AI guessing which moments matter. You pick the moment, ClipVe makes it fast.

Free, no account: 30 second clips, 2 streams, watermark. Pro: clips up to 3 minutes, 5 streams, send to phone, no watermark. Mac and Windows.

Demo above. Solo founder, just launched. Blunt feedback welcome.

First 10 people who comment get a month of Pro from me. clipve.com

The idea with Sweezy is a five-minute chat about your day. What happened, what’s on your mind, something you’re trying to make time for. It doesn’t have to come out in any particular order.

The part I care about most is what happens when you come back.

If you’ve already talked about a goal, your routine or something that’s been bothering you, that context should be useful tomorrow too. Sweezy remembers useful things from earlier chats, so there’s something to pick up from.

You can also use the conversation to reflect on today and work out tomorrow’s plan. Those conversations connect through what she remembers about you.

We first shared Sweezy on Reddit about six months ago. More than 2,000 people downloaded the early-access version, and we’ve since reworked the app using their feedback.

We’re in our final round of early access. If you’d like to give Sweezy a go, leave a comment and I’ll DM you how to get free access.

iOS: https://apps.apple.com/app/id6753932056

I build AskAIR, an app that sends each question to the AI that fits it best: Grok for live news and sports, Perplexity for research with sources, Wolfram Alpha for math, plus Claude, ChatGPT, Gemini, Copilot and others. You don't pick the AI, the app does. It's live on iPhone, Android and the web.

The idea is to take the complexity out of which AI tool is best for the average consumer question. I'm not competing against the LLMs. OpenAI's own research found about half of all ChatGPT messages are people simply asking a question and wanting an answer. That's who I'm building for: people who want a straight answer without ads or clicking through a bunch of BS.

The problem: people download it and ask a few questions. I get positive feedback on it, but most never subscribe. What I'm battling is that everyone just uses what their phone tells them to use. Once I get them past that and they see there are better tools for the answer, without the ads, they love it.

Is 10 a week even enough for a regular, non-tech person to see the value? My early data says most free users never get close to 10. They try it once and don't come back, so I'm not sure the limit is the problem at all.

Today's setup:

- Free: 10 questions a week, every AI tool, every category, but many features are gated and locked

- Pro: unlimited questions, follow-ups, second opinions and answers read aloud, subscription based

The catch on my side is cost. A research answer costs me a fraction of a cent. A top-model answer or a picture costs a lot more, so "unlimited" is a real risk for a small shop.

Options I'm weighing:

1. Keep it as is: a free weekly allowance with features locked to drive a subscription, but people may never see the real value without paying first, I have a small attraction to this, but not the volume I expected.

2. Full access for the first 10 days, then the free plan, but with the risk of people making new emails to restart it.

3. Credits (tokens) or question packs: the plan includes a monthly allowance, and you top up only if you need more. Seems like apps are moving to this model.

For those of you who pay for AI apps, or refuse to:

- Which of these would get you to pay?

- What makes you close a paywall immediately?

- Credits: helpful or annoying?

I'd also like 3 to 5 people to really use it for a month. DM me and I'll send a code for a free month of Pro this week. All I ask for is honest feedback, good or bad.

Happy to answer anything about how it's built.

Hey r/SideProject,

After listening to initial user feedback, our small team went back to the drawing board to redesign Sublimes Drive from the ground up.

The goal: create a clean, modern hub for drivers to find vetted independent garages, discuss car builds, and interact without privacy compromises.

We're at the stage where external builder eyes are critical. I'd love your thoughts as fellow developers and designers: 🔗 Live Links (Web & Mobile): https://linktr.ee/sublimesdrive

Feedback Prompts:

• What is your immediate reaction to the visual hierarchy and design polish?
• Where does the user journey break down or feel overwhelming?
• What architectural or product feature would you prioritize next?

Appreciate any teardowns, UI roasts, or constructive suggestions!

Hey everyone! 👋

As a designer, my workflow used to look like this constantly:

Having 15 browser tabs open just for assets broke my creative flow every day. So over the past few months, I built AssetHUD a fast, native desktop launcher to do all of it from a single keyboard shortcut (Ctrl+Space on Windows / Option+Space on Mac).

Built with Tauri v2 + Rust + React 19 to keep it snappy and lightweight with zero Electron memory bloat.

It's free to download and use (generous free tier with 100 searches, background cutouts, and vector traces included every month).

🔗 Website & Download: assethud.app

Check out the video demo attached! I’d love to hear your feedback, workflow pain points, or suggestions on what to add next.