Ask HN: Is there any software you only made for your own use but nobody else?

But I usually find that the hassle of having to maintain it at random times whenever some platform changes happens, or else not be able to use some important feature,vis just not worth it.

This worked great for years, but recently, YouTube stopped serving their `22` format for most videos, which coupled 720p video with the audio stream. Now, the best resolution you can get with audio and video interleaved is `18`, which contains only 360p video. So that's the best resolution obtainable this way for now, unless I add a whole layer to this to reconstruct an interleaved video from separate audio and video streams selected from the DASH manifest.

I ended up creating my own application that lets me create advanced, multi-stage exercises. I spent time building the trimmings that I felt other applications were also lacking such as: background visuals with procedurally generated shaders, easy gestures, etc.

I think one day I'll publish it to the app stores so other people who had similar desires have something.

Sure: For an operating system, I wanted to concentrate on exactly one, one of Windows or Linux. For this, that, and those reasons I picked Windows. Most important tool, KEDIT. Next most important, Rexx scripting language. Software for own use, console applications. Real effort, starting a business. For this, developing a Web site. Got the code -- Visual Basic .NET, ASP.NET, ADO.NET -- running as desired. Had a disaster, recovering, and spending too much time in system management mud wrestling and unanesthetised root canal procedures but getting back to the important computing and the business.

So, have ~100 of each of Rexx scripts, Kedit macros, and TeX macros. Will be moving back to working with Visual Basic .NET.

Just wrote a Rexx program of ~1200 lines of typing to do -- sitting down for this? -- file copying. WHYYYYY????? Did some copying, should have copied 99,024 files, but actually got only 41,462. Disaster.

So, wrote a Rexx script with three sections:

First, check and be clear on what copying want to do and use the Windows XCOPY, with carefully selected options, to do the copying.

Second, use Rexx function SysFileTree to get a list of the files/directories that should have been copied and then, in a loop, one name at a time, use Rexx function SysFileExists to be sure the copying was done.

Third, one file at a time, again from SysFileTree, use the Windows program FC.EXE (file check) with option "/B" for binary, to check that all the files were actually copied correctly down to the last bit.

My software does some good checking on the work to be done and some good reporting on what was done so that, now, if something goes wrong, e.g., the case of 99,024 files where copied only 41,462, at least I will know there was a problem.

Right, tools for such things should have been rock solid 20+ years ago and shouldn't have to do that. But, only 41,462 out of 99,024 provided a "reality check" so wrote the code I did.