Hello, my name is Fumihiro Matsui (䕶G), the representative of RINEARN.
Thank you for visiting the RINEARN website. RINEARN is a software development studio I operate independently as a sole proprietorship. Allow me to provide a brief introduction, including some background about myself and the journey of RINEARN so far.
Perhaps - more likely than not - you have come across this site after using one of the freeware tools developed and published by RINEARN. In fact, this website originally started as a "repository" for distributing such creations during my student years, more than 15 years ago.
At that time, I was majoring in physics at university, frequently engaging in numerical calculations and data analysis. As a programming enthusiast, I genuinely enjoyed these tasks. Over time, I began creating my own analysis software, and since I had gone through the trouble of developing them, I decided to share them publicly.
To make the website more lively, I also started uploading simple programs and sample code for calculations and visualizations, almost like writing blog posts.
Initially, this site was just a personal homepage for showcasing my hobby creations. However, some of these creations seemed to fulfill niche demands. Unexpectedly, they found use in various contexts, and I received feedback from users. These interactions led to surprising connections and exchanges, which turned out to be quite enjoyable. Before I knew it, I had been maintaining the site for over a decade.
By then, I was no longer a student and had started writing programs professionally. At one point, I decided to establish a sole proprietorship studio. Over the years, this site and my creative activities had grown to hold a special significance for me, so I formally adopted the site name 'RINEARN' as the business name. This marked the official beginning of RINEARN as a software development studio in 2018.
Even after transitioning to a business, I continue to develop and release the analytical freeware tools and various programs that RINEARN originally focused on, treating them as part of my contribution efforts. I hope to keep these activities going as much as possible. This is because I, too, have relied on many free analysis/calculation software tools, libraries, and sample code from my student days to the present. Continuing these efforts is my way of giving back, albeit in a small way, and I hope they can be of use to others.
As mentioned earlier, RINEARN currently operates as a development studio and freelance engineer, accepting work requests primarily in Japan. While the primary focus is on development and analytical tasks, as shown in the examples below, I can generally handle a wide range of requests within the scope of my capabilities.
Here are examples of the types of work I undertake.
