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viivi

@viivi

Joined June 2nd, 2026

  • 24Devlogs
  • 4Projects
  • 4Ships
  • 37Votes
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@viivi on presentware

57m 40s logged

#2 devlog, working on frontend project page

Today I started working with the main page, which shows all the created projects. I focused on project cards appearance. Border color of a card is determined by the type of the project (eg. orange = website)

I also created a color palette using https://coolors.co/ which I will be using.

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@viivi on presentware

6h 38m 30s logged

#1 devlog, working backend, simple frontend

Presentware will be an website for showcasing both hardware and software projects. It will have a search feature to find projects you are interested in and see what other people from your country are building. It will support project collaboration (add multiple contributors to a project). My plan is to make it easier to find other builders with same level so people could connect and get inspired by others. I hope also that this could give young builders more visibility, because I often feel like only big companies or professionals get the attention they deserve.

Right now presentware has an working backend, which supports:

  • adding new users and log in
  • creating new projects with with all the necessary fields

To do:

  • Almost everything in the frontend
    Currently the frontend only supports creating a new account, login and it shows all the projects in database.
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Ship Pending review

@viivi on spot-electricity-display

spot-electricity-display

It’s a small ESP-8266 project for displaying the current spot electricity price. I used Arduino IDE for coding the code to fetch and update the data displayed on the screen. I also 3D modelled a case for it with Tinkercad but I haven’t tried to actually print or build it because I don’t have a 3D printer or materials for it. The first photo is an edited demonstration photo how it could look like (perspectives failed). The second photo shows what I actually have.

I made this because it could make life easier. Instead of opening an app it would be much easier to check this to see the price.

It wasn’t easy to make this because I felt like everything was against me. Libraries weren’t the easiest to use, the screen tweaked all the time and there isn’t many guides for this specific board because it’s quite rare.

  • 4 devlogs
  • 5h build
Video of Project → See source code →
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@viivi on spot-electricity-display

25m 1s logged

#4 devlog

I guessed it rght, on the next day it worked again. One possible reason it didn’t work then was that the text wasn’t set to white, though it should be white as default. I finished readme and filmed a short demo video.

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@viivi on spot-electricity-display

1h 27m 5s logged

#3 devlog

Today I…

  • tried to add timing for API requests, and I think it works but now my oled screen won’t display anything. There’s 50/50 chance it works tomorrow with exact same code :(.
  • Finished 3D modelling by making a back plate for the case.
  • Wrote something to the README
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Ship

@viivi on CapyOS

CapyOS

This is just a silly project made just for fun! CapyOS is a capybara-themed web operating system. I followed WebOS 1 mission to build core features and for WebOS 2 I added 2 new apps, fixed full screen mode and made app menu scrollable. I also did some polishing for the UI and added “clear windows” -button. This was my first time building a website with pure html, javascript and css for a long time. I had a lot of fun designing while adding all those capybaras you will find when you test it!

I accidentally used over 7hr with mission 1 because I had so much fun and I love to adjust small things little bit better. Also because this project was made just for fun, I didn’t have much pressure to make this “good” or “serious”. It’s still 100% (hopefully) working. Have fun while testing! More details in readme.

  • 2 devlogs
  • 4h
  • 5.52x multiplier
  • 24 Stardust
  • WebOS 2
Try project → See source code →
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@viivi on CapyOS

1h 49m 11s logged

#7 devlog

Probably the last devlog for this project. CapyOS is now ready for shipping. Sorry for last devlog, I just wan’t to get these hours logged. The last feature I added was a timer. Its icon is, of course, caybara-themed.

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@viivi on CapyOS

2h 27m 28s logged

#6 devlog, webOS 2

Some updates

  • A new app: a gallery for viewing cute capybara photos
  • Full screen button works now, it aligns the window perfectly every time now. (It required actually only 2 new lines in to script!)
  • A new scrollbar in the app menu with a green theme. I added extra icons so that the scrollbar can be tested
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@viivi on speedMath Training

speedMath Training is a website for training mental math. It’s super simple to use and you can adjust how hard questions do you want. I built this site using React and typescript. I’m aware that similar sites exists already, but none of them was exactly what I wanted so I developed my own.

Before this project I had done courses that taught me developing websites with React and those courses included coding simple projects. But speedMath Training is my first own frontend project with React. The site is quite simple, but it wasn’t super easy for me to build it. I had never used Zustand state management solution, but I learned to use it to make state management easier.

Other new thing I learned was publishing a site with github pages. It was kind of complicated, because i have separated folders for frontend (this project) and back end (almost empty). But now I get a new site builded and deployed every time i push to the repository.

Project README includes more details if someone is interested.

  • 11 devlogs
  • 17h
  • 7.43x multiplier
  • 128 Stardust
Try project → See source code →
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@viivi on speedMath Training

1h 0m 34s logged

#11 devlog

The final devlog, I guess. I fixed responsive issues and finished readme and now I’m about to ship this project. (Sorry for short devlog, I just wanted to this 1 hour to be counted.)

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@viivi on spot-electricity-display

2h 4m 45s logged

#2 devlog

Coding

Lot of time, no progress.
I spent quite a long time trying to make buttons on my board work with my code. I couldn’t make them work :) . Instead of buttons I might make text change with specific a frequence.

3D-modelling

I started making box case for simple electronics (the board and battery case). I used Tinkercad for modelling. I had used Tinkercad before but it’s been long time since I used it last time. I really liked that Tinkercad has ready models of electronics even though it didn’t have the ones I’m using. That’s why I had to use components as close as possible to my actual components.

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@viivi on CapyOS

Here is my project for WebOS 1: CapyOS. A capybara themed WebOs using HTML, JavaScript and CSS.

Capybaras are cute chill guys. So why not to make a capybara themed WebOS?

This isn’t supposed to be a very serious project. I took the right to make it kinda silly. But at the same time it’s an actual web app and you could go to play around with it right now (link: https://vilp357.github.io/WebOS-Stardance/ )! It’n not very complex yet, but I’ve planned to continue to WebOS 2 mission to finish what I’ve started (nothing is stopping me, hahaa).

My own features:

  • scrollable app menu (when it has more icons it’s actually scrollable). I don’t like my desktop being covered in icons, so this way icons will stay on the left side forever.
  • fullscreen button. This one works best when there is only one window. Otherwise it might work, let’s say, in a different way.

Before starting this project I was already familiar with HTML and CSS, but I wasn’t that familiar with plain JavaScript. I think that I learned most about coding webpages with JavaScript and I feel confident continuing to WebOS 2.

Try project → See source code →
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@viivi on CapyOS

3h 59m 46s logged

#4 devlog

I think I’ve completed part 5 now. I still have to finish readme and deploy this and the ship. This will actually be my first ship!!
I’ve already planned things to do in WebOS 2 (and I actually started doing them). The new app I created in part 5 is link app because I often forget important websites and the app is a place to store links for those sites.

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@viivi on CapyOS

1h 25m 57s logged

#3 devlog

Working on my WebOS. Today I completed part 3 which means that the welcome window is closeable and openable. I hope to finish WebOS 1 soon. Looking forward to make a new app next time :)

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@viivi on CapyOS

1h 4m 4s logged

#2 devlog

Part 2 done.
I decided that my WebOS will be CapyOS so more of capybaras coming. I’m very happy with the navbar I made and I’ll update it later. I think it already looks really cool.

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@viivi on CapyOS

28m 2s logged

#1 devlog

Today I started making my own WebOS using the tutorial. There was nothing new to me but had fun with playing the elements. I don’t have any special plans for this project but hopefully I end making something (at least little bit) useful.

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@viivi on speedMath Training

3h 1m 1s logged

#9 devlog, days 10-12 (maybe?)

It’s been a while since last devlog, mostly because I haven’t had time to work with this, but also because hasn’t been any big updates.

But now it’s time for you…

to meet Calc, the mascot of the speedMath Training.
I still need to add Calc to the site. I’m also planning to make a buddy for them and together they will cheer you on.

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@viivi on spot-electricity-display

58m 40s logged

#1 devlog, days 1-2

 
This project has now officially started. Git and github are set up and the core feature works! Currently the arduino (it’s actually Wemos, not arduino) is able to show current price.
 
I use free API to get spot electricity price (it’s price in Finland).

https://api.spot-hinta.fi/JustNow

The board I use is Lolin D1 mini Pro V2.0.0
 

My plan for this project:

  • make the screen display current spot electricity price
  • design and maybe build box/casing for electronics
  • add leds to indicate how cheap or expensive electricity is now
  • add buttons for scrolling future prices
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