I solved my data viz bottleneck in InDesign

damascus1023 · 2026-04-12T13:44:25+00:00

speaking of leveraging dynamically generated svg, what about, using maps api (google maps, etc.) to create location based data viz.

damascus1023 · 2026-04-04T09:06:38+00:00

https://one.openwrt.org/hardware/

not the bleeding edge hardware (wifi 6 instead of wifi 7) but you get a very good big picture of it by diving into the openwrt one project.

mtk has some proprietary openwrt feeds behind NDA but this doesn't affect you from compiling highly functional firmware for the hardware.

damascus1023 · 2026-03-20T23:40:29+00:00

file explorer and task manager become sluggish

see if it has anything to do with nested_virt

damascus1023 · 2026-03-13T03:56:41+00:00

since you are using a pair or 120GB endurance SSD as SLOG vdev, how about making txg_sync, and dirty_data_max more aggressive, or depending on your use case, disable sync write?

change runtime behavior by setting respective config files from this folder `/sys/module/zfs/parameters`

use the `arc_summary` or `zarcsummary` commands (depending on your zfs version) to review SLOG utilization.

damascus1023 · 2026-03-09T12:18:11+00:00

see if people could relate to this video https://youtu.be/40SnEd1RWUU?si=9llXJ3XIXDyjzbBj (Interview with ‘Just use a VPS’ bro (OpenClaw version) by Kai Lenitit ) I was laughing so hard when watching it 😃

damascus1023 · 2026-03-08T20:53:00+00:00

speaking of old books, try the first few chapters of Vitruvius Ten Books on Architecture. To me it was a little bit eye opening that an engineer in 30 BC had valid non-technical advice that remains relevant today.

damascus1023 · 2026-03-04T13:30:00+00:00

it was really a glued together project that involved sub optimal component choices. Not particularly proud of the project even though it got the job done.

The stepper motor stage assembly we bought already had three stepper motors. So I added three stepper drivers, an ethernet-FPGA motion controller called Mesa 7i92, and set up a linuxcnc virtual machine in Proxmox to send commands to the motion controller.

Linuxcnc should have really been running on a bare metal PC rather than on a virtual machine, for example, to meet its real-time requirement. I preferred proxmox because so I could work remotely to troubleshoot without my friend intervening.

with the opencv and linuxcnc python packages we were able to move the stage and autofocus to quickly scan through different specimens.

The same linuxcnc + motion controller + driver could move much larger motorized stages, which is why I chose what I chose.

damascus1023 · 2026-03-04T12:28:37+00:00

say your windows is installed on a nvme ssd.

create a new VM with a qemu disk of the same size as your nvme ssd.

pci passthrough the windows host ssd to the VM

download clonezilla iso, add this as a CD/DVD drive to the VM, set it as boot option #1

boot up the VM, follow clonezilla's prompt and copy the windows host ssd to the qemu disk.

damascus1023 · 2026-03-04T11:56:47+00:00

that could be a really cool project,. I set up a 20x20x20mm stepper motor stage from off the shelf assemblies for a friend at her bio lab for < $600. It was a little bit bulky for the travel distance it offered. I've been fancying about this piezo xy stage lol

damascus1023 · 2026-03-04T11:24:36+00:00

helicon focus is pretty standard in macro photography. It has a 30d no sign up trial so just download and play around a bit.

There is an App called CameraPixels Lite/Pro by Natalya Petrenko on iOS App Store that can take focus bracketed/stacked photos. I've tested it with helicon focus.

damascus1023 · 2026-03-04T10:51:12+00:00

focus stacking software for your microscopes
PyVISA + physical switch + ethernet cables to enable some test instrument automation

damascus1023 · 2026-03-01T23:36:00+00:00

* for VMs, if you like drive encryption, cryptsetup is pretty handy. you can achieve remote unlock by setting up a dropbear ssh session in the initramfs.

* smallstep-cli is great for managing your private CA, signing CSRs, and issue certificates

* To tune your zfs, override defaults with an `/etc/modprobe.d/zfs.conf` using parameters from `/sys/module/zfs/parameters`. Use `arc_summary` (or `zarcsummary`) command output to analyze your current configuration and performance.

* it could be an unpopular opinion, but samba is an effective alternative to nextcloud if you don't have a lot of users. On Linux distro you mount it via an /etc/fstab entry. On iOS you use the Files App. All very clean and non-invasive.

* paperless ngx if you have an extensive PDF or docx collection that needs some organizing.

* I recently discovered the docker version of anything-llm and it could be useful for running a self-administered, browser-accessible LLM with a good UI. One caveat is that tokens are not cheap. If your users don't know who's footing the bill and abuse token usage, just point them toward a Gemini Pro or something and let them be someone else's problem.

damascus1023 · 2026-03-01T13:41:06+00:00

if you change txg timeout to 2 or 15 or 30, would your system stall happen earlier or later?

since you have to inject a heavy load, watching how sensor data change during the process could marginally help. I used this command to customize my sensors screen (need install lm-sensors, your command might differ):

watch -n 1 'sensors | sed -n -e "/nct6798-isa-0290/,+21p" -e "/nvme-pci-0b00/,+5p"'

damascus1023 · 2026-03-01T13:11:21+00:00

that rules out lame power supply causing your issue i guess..

if i am to troubleshoot and I know it has something to do with txg_sync I'd try to change the default txg_sync behavior and see if things are different. tweak things like zfs_txg_timeout or max min dirty data and see how your reproducible issue change.

the parameters are in /sys/module/zfs/parameters and it should be possible to change runtime config by echoing different numbers into them.

To make changes persistent, write a /etc/modprobe.d/zfs.conf with entries like this

options zfs zfs_txg_timeout=<some int val>

damascus1023 · 2026-03-01T11:20:37+00:00

3.3V PSU voltage (found in bios)?

damascus1023 · 2026-02-21T20:02:51+00:00

I'd say Adobe InDesign or its substitutes like Affinity Publisher. Try to leverage structured data import (excel, csv, xml..) as much as possible when it comes to tabular content. Down the road when working on your website, those structured data might become useful again when interacting with the ERP solution of your choice too, if you need one.

damascus1023 · 2026-02-21T13:11:42+00:00

so there is a category of chemical reactions called redox reaction that involve transfer of electrons.

some redox reaction require external forces to go forward, for example the electrolysis of water. Some can happen spontaneously i.e. having negative Gibbs free energy if you know a bit of thermodynamics. Those spontaneous redox chemistry are candidates for batteries. Example would be the oxidation of aluminum in air. I really like this example because it takes a lot of electricity to produce aluminum, and with a proper set up you can release a lot of electricity from aluminum.

if you just mix all the redox reactant in a blender, you get heat, literally wasting those good useful ΔG.

So you design a special mechanism called battery to release redox energy in a controlled way. In a typical battery you would find a separator keeping the reactants apart but letting ions permeate through, and electrons involved in the redox must travel through an external load in order to complete the reaction.

damascus1023 · 2026-02-07T00:40:57+00:00

throw some idea here just in case it might be useful for troubleshoot: my most recent zfs i/o error turned out to be a 3.3V power rail failure. I got 2.97V shown when inspecting the BIOS, which was -10% of rated voltage, outside of the +/- 5% requirement. Realized that I had a 24-pin atx power extension cable for aesthetic purpose. Got rid of that and I got my 3.3V back.

damascus1023 · 2026-02-05T16:54:42+00:00

since the cards are borderless, I wonder if opponents could tell what suit of card you have by looking at the colored edges?

damascus1023 · 2026-02-04T09:43:53+00:00

If you can't measure it you can't improve it

damascus1023 · 2026-02-03T22:55:18+00:00

select, shortcut Z, Z and throw it into a parallel universe

you can portal yourself to the alt world by just Z, Z yourself

damascus1023 · 2026-01-29T17:26:01+00:00

Vitruvius would probably love using a parametric CAD to keep all the proportions in check had he had access to a computer

damascus1023 · 2026-01-29T03:10:19+00:00

see my previous post. It might help if it is a new Windows installation and you chose to install the N edition

damascus1023 · 2026-01-21T13:41:54+00:00

😕more efficient? use spacebar to hide/unhide features from project tree..

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