I’m building a free, open-source invoice generator with live PDF preview — all browser-based, no sign-in needed. It supports multiple languages, currencies, European VAT deductions, and more. Originally made it for myself, so it’s a bit of a personal tool — but I hope others find it useful too :) https://easyinvoicepdf.com/en/app https://github.com/VladSez/easy-invoice-pdf
Ask HN: What are you working on? (May 2025)
721–730 of 1001 posts
Re: Ask HN: What are you working on? (May 2025)
#722Re: Ask HN: What are you working on? (May 2025)
#723I’m working on https://postcardlove.com — a super simple site that lets you send real postcards using a photo from your phone. No login, just upload, write, and send. It started because I wanted to send my sister an old photo for her birthday, and instead of using CVS or Shutterfly like a normal person, I ended up building it using Bubble and Lob. Now I’m exploring the B2B angle — a friend asked if I could do postcar…
Re: Ask HN: What are you working on? (May 2025)
#724Re: Ask HN: What are you working on? (May 2025)
#725I’m working on https://postcardlove.com — a super simple site that lets you send real postcards using a photo from your phone. No login, just upload, write, and send. It started because I wanted to send my sister an old photo for her birthday, and instead of using CVS or Shutterfly like a normal person, I ended up building it using Bubble and Lob. Now I’m exploring the B2B angle — a friend asked if I could do postcar…
It also can be used for Marketing because you can circle areas on a Google Map to send mailings to, and then filter by Household income, home value, etc
Ping me if you want to chat
Re: Ask HN: What are you working on? (May 2025)
#726modeling the heat transfer modes in Enceladus' icy shell that rests above its liquid water ocean. previous modeling has assumed that all heat transfer is conductive, but using dynamical simulations i've shown that under certain conditions convection can occur at in the shell. specifically, these conditions are having a thick enough ice shell, the right amount of porous fluffy ice deposited from the plumes at Enceladu…
Re: Ask HN: What are you working on? (May 2025)
#727I am writing a newsletter, https://www.clientserver.dev . It started with the writing prompt “what if someone tried to make Money Stuff for software engineering?” My time is constrained since I have a kid, and I’m still iterating on the format a bit. But I recently crossed 250 subscribers and have made the Hacker News front page twice in the 6 months I have been running the newsletter, so I feel like I’m on the right…
How often do you share your posts in HN? How do you decide which posts to share?
Re: Ask HN: What are you working on? (May 2025)
#728Trying to replace everything I use daily, outside money/banking, with my own fully customizable software. I had enough depending on others.
Re: Ask HN: What are you working on? (May 2025)
#729This is an example view-only trip: https://ikuyo.kenrick95.org/trip/2617cd98-a229-45d4-9617-526...
So far it has:
- Timetable view, with drag-and-drop support. I think it will be useful for planning the activities as I need to be able to quickly swap activities - List view. I think it will be useful for actual travel itself as the day go, I'll need to focus day-by-day - Maps. To make it easier to plan nearby activities, but I think I still need to rely on Google Maps or other kind of maps since I still need the navigation/direction in-between activities - Sharing & comments. Since I plan to use it to collaborate the travel with my friend, this is a must-have feature for me. - Expenses. This is still quite basic but maybe I should also track who owes whom...
I think now I'm happy with the feature set and will start planning my travel using this to polish the UX :)
Re: Ask HN: What are you working on? (May 2025)
#730My co-worker and I started this as a side project because we were building so many sample apps, proofs of concept, and engineering as marketing apps and we were feeling more and more locked into Vercel every day. So we wanted to go back to client and server separation and when we did that, we realized most hosting providers have moved toward server-side rendering as the default.
Client-side rendering isn’t for everyone, but plenty of people still make simple websites or even complex CSR web apps and don’t want to deal with fully integrated solutions like Vercel (and Netlify now to a lesser extent). Plus they want the flexibility of choosing different tools for their frontend and backend.
This remains a fully bootstrapped side project for us, but it’s gotten the most traction of any side project either of us has worked on.