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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for June 12th, 2025

A PDF can run JavaScript, which means it can hosts a VM for Linux or Doom

Posted by jpluimers on 2025/06/12

A few years back, this question popped up: [Wayback/Archive] Embedding JS into PDF : cybersecurity

The answer is yes, and you can take this far. Virtualisation far. Which is what these repositories – both by [Wayback/Archive] ading2210 · GitHub – did:

Via [Wayback/Archive] Angry Nerds Podcast – YouTube -> [Wayback/Archive] Angrynerds 235 – Automasturbator – YouTube -> 1540 seconds at [Wayback/Archive] Angrynerds 235 – Automasturbator – YouTube – t=5040s

1:24:00 Hadden we Doom in PDF-vorm al eens genoemd? https://github.com/ading2210/doompdf Er is een vervolg, nu gewoon linux draaien in een PDF https://github.com/ading2210/linuxpdf Dus in feite gewoon een PDF-VMetje

Related:

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Posted in *nix, Development, JavaScript/ECMAScript, Linux, Power User, Software Development, Virtualization | Leave a Comment »

Sequoiaview altrnatives

Posted by jpluimers on 2025/06/12

I wrote about Sequoiaview in depth in SequoiaView Homepage, made some research notes in “cushion treemap” delphi – Google Search and touched it slightly in A choco install list.

I never heard back from my request for Sequoiaview source code, and given ever increasing local storage media sizes, the speed of it now has become an issue, so I started looking to see if more alternatives have appeared and what sets them apart.

TL;DR

  1. There is the open source WinDirStat that runs as non-admin and is about as slow as Sequoiaview
  2. There is the closed source but free for personal use WizTree that requires admin elevation and is much faster than Sequoiaview and WinDirStat

Neither of them allow for a view that is cushion treemap only.

The reason that WizTree is fast is that it directly uses the NTFS MFT (Master File Table) to read the information from. This requires elevated permissions.

This is the same mechanism used by the Everything search tool, but unlike Everything, WizTree:

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Posted in C++, Development, Encoding, Mojibake, Software Development, UTF-8, Windows Development | Tagged: | Leave a Comment »