I used to use Testy Tester until one of my coworkers commented that she was acquainted with the Tester family, and there were quite a few of them in the area. These days I usually have completely separate systems for testing, but even there I use something like Zzzperson for test data.
It doesn't actually render millions of items though. It renders the visible viewport, something you can also do with pretty standard DOM virtualization techniques.
Not Shareware exactly, but once I started earning money in the mid 90s, I purchased physical copies of Slackware on CD-ROM to support the distro that taught me Linux. It was also much more convenient than downloading dozens of floppies from ftp.funet.fi or whatever FTP server I was using at the time.
As for my Amiga and C64 days, I was too young to have a lot of money, and piracy was rampant in Europe, where I lived. Even if I had wanted to pay I wouldn't have known how to send money overseas.
That challenge was annoying because of the terrible spec. In addition to the "around 1/2 lbs" spec, it falsely claims that length and weight are metric (they are not), and it spells it "impostor" in the specified output, but expects "imposter". Both spellings are used in the spec. Frustrating.
However, students will learn not to trust the spec, so I suppose that's a valuable lesson.
I have one of these. I have had it for years, and even swapped out the battery pack once. I have had no other issues with it.
After I read the Reddit post and watched the tear-down video, I disconnected and opened it up and found that not only did it have the yellow glue, but patches of it had turned brown and had what looked like drops on it in places.
Now I am looking for a replacement, but from the comments here it sounds like other manufacturers have the same issue.
Also have one. Also replaced the battery. The other thing I don't like about it is that the battery is lead-acid, which is extremely toxic and extremely heavy. But when I looked into that, I could not find any manufacturer that offered a consumer grade lithium-ion product.
Food for thought: lead-acid batteries are the most recycled things on earth, at around 99%. Probably because they tend to be large, so they have a high volume to surface ratio, and are relatively simple and easy to recycle compared to more modern battery types, and many automotive related companies are required to have recycling programs for them, and they've been around for many decades ...
Fair enough. But if it is in an electrical device with shoddy glue that is likely to catch fire or explode, then it would be nice to not be given a lethal dose of lead in addition to my place burning down.
Personally,.I would much prefer my odds as an adult in a lead poisoning/fire situation than a similar li-po situation. Going with the more complex battery is basically choosing a future of experimental medicine over treatments with long and successful track records.
Laptops typically get replaced every 3-4 years, and a major requirement for them is to be lightweight. Lead acid batteries are far more economical for applications where weight is not a concern.
I'm giving some thought to brewing up my own UPS. Mostly for capacity, which is tough to get in a residential unit at any price, and quickly becomes expensive if you try. Technologically, it is not particularly difficult. You buy a halfway decent inverter/charger from a reputable manufacturer, and however much LiFePO4 capacity you want. I would not choose lithium ion; LFPs are considerably less likely to combust.
A few years ago ESR started on an open source/hardware UPS project called Upside.[0][1] I can't vouch for the design as I haven't looked at it in a long time.
How do you achieve the X <= 10 ms switching capacity? You need this if you actually want your equipment to survive the power outage.
Also, I'm extremely sensitive to humm noise output by inverters so I can only tolerate UPSs that have that "Green mode" option which (I guess?) powers directly from AC when under quality power but still provides protection.
My preferred inverter/charger manufacturer, Victron, has "UPS Mode" for their Multiplus units that will switch in 12ms. That's similar to many UPS's, though some of the higher end ones are sub-10.
It's not the lithium part of lithium batteries you worry about, it's everything else. Lithium hexafluorophosphate turning into hydrogen fluoride gas, for example.
I still have my lead acid batter in my UPS from... 2016? I'm not even sure when I got it.
With lithium I need to know when I got it, did it run in non-ideal lithium conditions (-20^C? No go. +34^C? No go), and the most importantly - in three years I need to replace a Li battery, but with a lead battery and a non-online UPS I can have from 3 to 10 years of lifetime from it.
