Wacom input drivers

I bought a Wacom Intuos CTL-4100, since I need to draw some schemes during online meetings and I am really bad with the mouse. I installed libwacom and xournalpp from SBo.  Everything works as it should on Slackware -current, however it does not work on 14.2.
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Venn diagrams online

I’ve been preparing some figures, where I need to include Venn diagrams. I am looking to make them proportional to the values. So far, I have not found a way to do this in Gnumeric, WPS Office LibreOffice or OpenOffice.org. I guess, I should find the time to learn a little bit more of R. Meanwhile, I’ve been searching for a quick solution online.

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LILO and nvme

I recently upgraded to a 1 TB NVME drive and I have Windows 10 on it. The computer boots by default from another disk, a standard SSD, where Slackware -current is installed with LILO. The problem is that selecting Windows from LILO does not boot it. The screen just stays blank. If I specify in the BIOS that the NVME has boot priority, it boots fine.
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Keep lines thickness in Inkscape

I am preparing some figures in Inkscape. Something that always gets on my nerves is fixing lines (border) width when scaling objects. The solution is quite simple and actually obvious.
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Shorten contents of spreadsheet cells

I have a spreadsheet file with a list of species’ Latin names. I want to automatically create abbreviations for each species, by shortening both the genus and specific epithet to a certain number of characters. Here’s how to do it.
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