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Posted by jpluimers on 2025/11/13
[Wayback/Archive] PDF special voor alle leden: GUI’s programmeren met Python | MagPi
Via: [Wayback/Archive] MagPi Nederland on Twitter: “PDF special voor alle leden: gui’s programmeren met python #raspberrypi #python”
Download:
[Wayback/Archive] https://www.magpi.nl/files/attachment/35 (202209131320GUI NL.pdf).
Guizero: Read the rest of this entry »
Posted in Development, Hardware Development, Python, Raspberry Pi, Scripting, Software Development | Tagged: Python, RaspberryPi | Leave a Comment »
Posted by jpluimers on 2025/11/12
I forgot both to archive this 10+ year old G+ post and schedule a blog post about it This is nice #geekporn. ASCII Art that’s truly useful.….
ASCII to bezier drawn images in a very clever way.
Found it back when searching for prior blog posts on ASCII art, because of my yesterday’s blog-post ASCII Art Archive, so here it finally is: the links about how to go from ASCII art to bezier images. Have fun!
Posted in .NET, ASCII art / AsciiArt, C#, Delphi, Development, FireMonkey, Fun, ObjectiveC, Ruby, Software Development | Tagged: geekporn | Leave a Comment »
Posted by jpluimers on 2025/11/12
This finally made me perform the (long overdue) migration from Sendmail to Postfix:
The Sender Rewriting Scheme (SRS) is a technique to forward mails from domains which deploy the Sender Policy Framework (SPF) to prohibit other Mail Transfer Agents (MTAs) from sending mails on their behalf. With SRS, an MTA can circumvent SPF restrictions by replacing the envelope sender with a temporary email address from one of their own domains. This temporary address is bound to the original sender and only valid for a certain amount of time, which prevents abuse by spammers.
[Wayback/Archive] roehling/postsrsd: Postfix Sender Rewriting Scheme daemon
Via a long queste to figure out why Gmail every now and then bounces forwarded messages because of Sender Policy Framework (SPF). Below are a few of the links that brought me here in mostly reverse order, but first some links that should help me further on the topic of Postfix virtual aliases.
The sendmail setup had some features not covered below (like a catch-all forward for email to addresses virtual domains not covered by a virtual alias) which I hopefully can cover later.
One thing learned both over the past decades and related postfix material: use separate servers or containers for each of your functions. So do not mix web-hosting, outgoing mail, incoming mail, fail2ban and others on the same server.
Links:
Posted in *nix, *nix-tools, Communications Development, Development, Internet protocol suite, postfix, Power User, sendmail, SMTP | Tagged: Reload | Leave a Comment »
Posted by jpluimers on 2025/11/11
Earlier this year I bumped into [Wayback/Archive] ASCII Art Archive
This brought back instant memories about ASCII art, so in the future expect af few unfinished blog-posts that were in my “if I ever get to it archive” about it.
Let me start with my very limited ASCII art I used in late 1980s and early 1990s newsgroup and LISTSERV mailing list signature I reconstructed from a comp.virus post¹ having some very old contact data²:
o _ _ _ _ _ voice: +31-2522-20908 (18:00-24:00 UTC)
/ (_' | (_) (_' | | snail: P.S.O.
__/ attn. Jeroen W. Pluimers
P.O. Box 266
jeroenp@rulfc1.LeidenUniv.nl 2170 AG Sassenheim
jeroen_pluimers@f521.n281.z2.fidonet.org The Netherlands
Shortly after that, my main source of income moved from the command-line to GUI based tools, so I temporarily kind of lost interest in command-line tools and customs. In that period FIGlet (see below) got created, which I totally missed (though I vaguely remember the 1.0 version being named newban).
The link at the start of this blog post not only pointed me to FIGlet, but also has a lot of examples (like some [Wayback/Archive] ASCII Art Logos – asciiart.eu) of which many by ASCII artist Joan Stark, and also links to JavaScript based tools:
Posted in ASCII art / AsciiArt, Development, Encoding, Fun, History, JavaScript/ECMAScript, Retrocomputing, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2025/11/11
Cool practical application of LinuxCNC: [Wayback/Archive] The Raspberry Pi that ships other Raspberry Pis – Pi Australia
LinuxCNC controls CNC machines. It can drive milling machines, lathes, 3D printers, laser cutters, plasma cutters, robot arms, hexapods, and more.
Via [Wayback/Archive] Frans van Berckel on Twitter: “@geerlingguy So, there is a Raspberry Pi, that ships other Raspberry Pis?”
–jeroen
Posted in *nix, *nix-tools, Development, Hardware Development, Linux, Power User, Raspberry Pi | Leave a Comment »
Posted by jpluimers on 2025/11/10
[Wayback/Archive] Thomas 🔭🕹️: “For the love of Eliza, stop using AI-generated images for blog posts and articles. It’s like serving some nice vomit as a side dish with your lovingly prepared homemade dinner.…” – Hachyderm.io
--jeroen
Posted in AI and ML; Artificial Intelligence & Machine Learning, Development, Generative AI, LLM, Software Development | Leave a Comment »
Posted by jpluimers on 2025/11/10
TL;DR: it is impossible on a Mac to accurately measure power usage by attached USB devices. Only a general indication is possible, but it is unreliable.
[Wayback/Archive] How to monitor USB power consumption? – Ask Different
Related: [Wayback/Archive] View energy consumption in Activity Monitor on Mac – Apple Support (UK)
Via: [Wayback/Archive] macos view usb power usage – Google Search
–jeroen
Posted in Apple, Mac, MacBook, MacBook Retina, MacBook-Pro, Power User | Leave a Comment »
Posted by jpluimers on 2025/11/07
On my M1 MacBook, somehow Spotlight started to fail returning some indexed files (especially recently added ones would not show up or it would take a very long while for some of them to show up).
So I revisited mdutil and related commands while writing a comment on the YouTube movie [Wayback/Archive] How To Rebuild the Spotlight Index on Your Mac – YouTube which since then vanished, but luckily I saved it and here I amended it with formatting:
Posted in Apple, Mac, Mac OS X / OS X / MacOS, Power User | Leave a Comment »
Posted by jpluimers on 2025/11/07
From a long time ago, but still fun: [Wayback/Archive] Forrest Brazeal on Twitter: ‘Not all “utilization” is created equal…’
–jeroen
Posted in Cloud, Infrastructure, Power User | Leave a Comment »
Posted by jpluimers on 2025/11/06
Phrased as [Wayback/Archive] sofia: “A shitpost that’s been brewing…” – unstable.systems Mastodon (Glitch Edition) I like this video a lot:
If WordPress killed the video, it has that habit, then you can watch it here: [Wayback/Archive] 30dd92563fd33de3.mp4 or [Wayback/Archive] 41cbd023913c0fd6.mp4
Posted in AI and ML; Artificial Intelligence & Machine Learning, Development, LLM, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 