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Search - "proof of concept"
When you realize all personal projecrs end up being proof of concept prototypes working just for you and youd be ashamed if someone looked at the code behind it.3
I work in a fintech company and our product is a point of sale app. Two senior indian dev contractors just spent 3.5 months on a feature where all they had to do was map two tables by using a third mapper table and display 2 lists to the user so he could update the data in those two tables.
After hearing same excuses (that they are working in it) for the past few weeks, I took it upon myself and made a proof of concept for them.
Yeah our codebase is kinda shit but even me, a fcking junior with 3 years of experience managed to do it in 1 week.
Meanwhile these fuckers spent 14 weeks beating around the bush and couldnt even save data to a fucking database. They just added UI and thats it. When asked how investigation is going fuckers couldnt even come up with any findings. For weeks. Seniors my fucking ass.
If not for me, I guess they would have taken till the end of the year. No, fuck you, here is an example now pickup your slack.
Im tired of picking after you. God damn incompetent leeches5
I've been working on a proof of concept for my thesis for a few days and the async query calls drove me nuts for quite a while. I finally managed to deliver all query results asynchronously while still very much relying on a strong architectural design pattern. I am filled with caffeine, joy and a sense of pride and accomplishment.1
Most successful? Well, this one kinda is...
So I just started working at the company and my manager has a project for me. There are almost no requirements except:
- I want a wireless device that I can put in a box
- I want to be able to know where that device is with enough accuracy to be able to determine in which box the device was put in if multiple boxes were standing together
So, I had to make a real time localization system. RTLS.
A solo project.
Ok, first a lot of experiments. What will the localization technique be? Which radio are we going to use?
How will the communication be structured?
After about two months I had tested a lot, but hadn't found THE solution. So I convinced my manager to try out UWB radio with Time Difference Of Arrival as localization technique. This couldn't be thrown together quickly because it needed more setup.
Two months later I had a working proof of concept. It had a lot of problems because we needed to distribute a clock signal because the radio listeners needed to be sub-nanosecond synchronous to achieve the accuracy my manager wanted. That clock signal wasn't great we later found out.
The results were good enough to continue to work on a prototype.
This time all wired communication would be over ethernet and we'd use PTP to synchronize the time.
There was a lot of trouble with getting the radio chip to work on the prototype, ethernet was tricky and the PTP turned out to be not accurate enough. A lot of dev work went into getting everything right.
A year and 5 hardware revisions later I had something that worked pretty well!
All time synchronization was done hybridly on the anchors and server where the best path to the time master was dynamically found.
Everything was synchronized to the subnanosecond. In my bedroom where I had my test setup I achieved an accuracy of about 30cm in 3d. This was awesome!
It was time to order the actual prototype and start testing it for real in one of the factory halls.
The order was made for 40 anchors and an appointment was made for the installation in the hall.
Suddenly my manager is fired.
Ehh... That sucks. Well, let's just continue.
The hardware arrives and I prepare everything. Everything is ready and I'm pretty nervous. I've put all my expertise in this project. This is gonna make my career at this company.
Two weeks before the installation was to take place, not even a month after my manager was fired, I hear that my project was shelved.
"We're not prioritizing this project right now" they said.
It would've been so great! And they took it away.
Including my salary and hardware dev cost, this project so far has cost them over €120k and they just shelved it.
I was put on other projects and they did try to find me something that suited me.
But I felt so betrayed and the projects we're not to my liking, so after another 2-3 months I quit and went to my current job.
It would've so nice and they ruined it.
Everything was made with Rust. Tags, anchors, RTLS server, web server & web frontend.
So yeah, sorry for the rambling.5
Heard of Electron? There is also Electrino, Electron-like stuff that uses your system's browser instead of embedding full Chrome. A “Hello World” app takes 115 MB using Electron, but only 167 kB using Electrino.
Too bad it's still a proof of concept with almost no features.
The project is nowhere near complete, the customers are waiting for demo/proof of concept. the code is spaghetti and I'm burned out.
Oh, and I'm a solo dev.2
I was asked to make proof of concept small frontend app with some simplified requirements, they asked me because it should be written in the stack I done most of my career work with. I do it in 3 days instead of 5, using those 2 days to optimise the app and explore different approaches. I noted down my findings, what to avoid and reasons and also what is good to use and reasons and shared with everyone.
We waited for the project to start, I started working on another project in the meantime and there was a big rush to make project go live etc., so I was consumed 100% on that new project.
So they put in charge backend php developer to do frontend js work. I said ok, do you need help in starting out? Nah, my proof of concept repo is enough.
4 days before that small project goes live they asked me to do code review. All things I noted down to avoid are in the codebase, few bad practices but everything is over-engineered (in a very bad way), some parts should be more flexible as current setup is very rigid, having almost all kinds of CSS, I saw SASS, CSS variables, 2 different CSS-in-JS tools with some additional libraries that is used to toggle classes.
I don't know how to approach this as I am not asshole as a person and I don't want to say to my colleague that his codebase is completely trash, but it is.
The worst parts: They called me to help finish the app and budget is almost spent!
I would rewrite the whole app as the state of the current app is unusable and everything is glued with bad Chinese ducktape that barely holds.
Additional points because it won't bundle as everything is f**ked.
I am seriously thinking of duplicating master branch and refactor the whole fricking app but won't do that as I am burning midnight oil on other two projects. Don't worry overtimes are paid.
I hate those shitty situations, this project was supposed to be tiny, sweet and example of decent project in this company but it is instead big fat franken-app that will be example how smart it is to avoid putting backend dev to do frontend work (I also agree for vice versa)!
Just finished a little proof of concept of a reprojected multisample antialiasing technique and daaaaamn it's looking good. First time ever a rendering technique I invented isn't complete shit so that's an improvement
It still has some (pretty big) issues with both spatial and temporal ghosting but I have some ideas in the pipeline
I wish I could show you guys comparison images but as it turns out most anti aliasing techniques look pretty good on still frames but only the good ones stand up under motion and I don't know of a good way right now to capture pixel perfect clips like that5
I've said it before and I'll say it again: I believe in theoretical study prior to proof of concept.
At least for me, it takes me a 100 times more time to make a proof of concept the 'quick and easy' way rather than properly studying the theoretical knowledge and then applying it.
For example, it took me one and a half months to build a small website in ReactJS without much prior knowledge. It took me exactly one day performing the same task when I properly had studied all its internals and theoretical knowledge before I started.
If I know what I'm doing, I can easily create; if I don't, then I'm just messing around, looping myself into problems ad infinitum.
Teach a man to fish..2
Anybody know where to find the bluesniff android app? It used to be able to see undetectable bluetooth devices. I go to the apk download pages and it is just gone. There was source code available in an archive but that is gone too. I found some proof of concept scripts on github, but nothing that can easily be turned into an app.2