#opensourc

[nixcraft]

the audacity. lol.

[prosthetic-heart-fella]

Pulled a sneaky on my co-worker today :p

[engineering]

StreamBuilder: our open-source framework for powering your dashboard.

Today, we’re abnormally jazzed to announce that we’re open-sourcing the custom framework we built to power your dashboard on Tumblr. We call it StreamBuilder, and we’ve been using it for many years.

First things first. What is open-sourcing? Open sourcing is a decentralized software development model that encourages open collaboration. In more accessible language, it is any program whose source code is made available for use or modification as users or other developers see fit.

What, then, is StreamBuilder? Well, every time you hit your Following feed, or For You, or search results, a blog’s posts, a list of tagged posts, or even check out blog recommendations, you’re using this framework under the hood. If you want to dive into the code, check it out here on GitHub!

StreamBuilder has a lot going on. The primary architecture centers around “streams” of content: whether posts from a blog, a list of blogs you’re following, posts using a specific tag, or posts relating to a search. These are separate kinds of streams, which can be mixed together, filtered based on certain criteria, ranked for relevancy or engagement likelihood, and more.

On your Tumblr dashboard today you can see how there are posts from blogs you follow, mixed with posts from tags you follow, mixed with blog recommendations. Each of those is a separate stream, with its own logic, but sharing this same framework. We inject those recommendations at certain intervals, filter posts based on who you’re blocking, and rank the posts for relevancy if you have “Best stuff first” enabled. Those are all examples of the functionality StreamBuilder affords for us.

So, what’s included in the box?

The full framework library of code that we use today, on Tumblr, to power almost every feed of content you see on the platform.

A YAML syntax for composing streams of content, and how to filter, inject, and rank them.

Abstractions for programmatically composing, filtering, ranking, injecting, and debugging streams.

Abstractions for composing streams together—such as with carousels, for streams-within-streams.

An abstraction for cursor-based pagination for complex stream templates.

Unit tests covering the public interface for the library and most of the underlying code.

What’s still to come

Documentation. We have a lot to migrate from our own internal tools and put in here!

More example stream templates and example implementations of different common streams.

If you have questions, please check out the code and file an issue there.

[alongtidesoflight]

in wake of yet another wave of people being turned off by windows, here's a guide on how to dual boot windows and 🐧 linux 🐧 (useful for when you're not sure if you wanna make the switch and just wanna experiment with the OS for a bit!)

if you look up followup guides online you're gonna see that people are telling you to use ubuntu but i am gonna show you how to do this using kubuntu instead because fuck GNOME. all my homies hate GNOME.

i'm just kidding, use whatever distro you like. my favorite's kubuntu (for a beginner home environment). read up on the others if you're curious. and don't let some rando on reddit tell you that you need pop! OS for gaming. gaming on linux is possible without it.

why kubuntu?

- it's very user friendly

- it comes with applications people might already be familiar with (VLC player and firefox for example)

- libreoffice already preinstalled

- no GNOME (sorry GNOME enthusiasts, let me old man yell at the clouds) (also i'm playing this up for the laughs. wholesome kde/gnome meme at the bottom of this post.)

for people who are interested in this beyond my tl;dr: read this

(if you're a linux user, don't expect any tech wizardry here. i know there's a billion other and arguably better ways to do x y and/or z. what i'm trying to do here is to keep these instructions previous windows user friendly. point and click. no CLI bro, it'll scare the less tech savvy hoes. no vim supremacy talk (although hell yeah vim supremacy). if they like the OS they'll figure out bash all by themselves in no time.)

first of all, there'll be a GUI. you don't need to type lines of code to get this all running. we're not going for the ✨hackerman aesthetics✨ today. grab a mouse and a keyboard and you're good to go.

what you need is a computer/laptop/etc with enough disk space to install both windows and linux on it. i'm recommending to reserve at least a 100gb for the both of them. in the process of this you'll learn how to re-allocate disk space either way and you'll learn how to give and take some, we'll do a bit of disk partitioning to fit them both on a single disk.

and that's enough babbling for now, let's get to the actual tutorial:

🚨IMPORTANT. DO NOT ATTEMPT THIS ON A 32BIT SYSTEM. ONLY DO THIS IF YOU'RE WORKING WITH A 64BIT SYSTEM. 🚨 (win10 and win11: settings -> system -> about -> device specifications -> system type ) it should say 64bit operating system, x64-based processor.

step 1: install windows on your computer FIRST. my favorite way of doing this is by creating an installation media with rufus. you can either grab and prepare two usb sticks for each OS, or you can prepare them one after the other. (pro tip: get two usb sticks, that way you can label them and store them away in case you need to reinstall windows/linux or want to install it somewhere else)

in order to do this, you need to download three things:

rufus

win10 (listen. i know switching to win11 is difficult. not much of a fan of it either. but support's gonna end for good. you will run into hiccups. it'll be frustrating for everyone involved. hate to say it, but in this case i'd opt for installing its dreadful successor over there ->) or win11

kubuntu (the download at the top is always the latest, most up-to-date one)

when grabbing your windows installation of choice pick this option here, not the media creation tool option at the top of the page:

side note: there's also very legit key sellers out there who can hook you up with cheap keys. you're allowed to do that if you use those keys privately. don't do this in an enterprise environment though. and don't waste money on it if your ultimate goal is to switch to linux entirely at one point.

from here it's very easy sailing. plug your usb drive into your computer and fire up rufus (just double click it).

🚨two very important things though!!!!!!:🚨

triple check your usb device. whatever one you selected will get wiped entirely in order to make space for your installation media. if you want to be on the safe side only plug in the ONE usb stick you want to use. and back up any music, pictures or whatever else you had on there before or it'll be gone forever.

you can only install ONE OS on ONE usb drive. so you need to do this twice, once with your kubuntu iso and once with your windows iso, on a different drive each.

done. now you can dispense windows and linux left and right, whenever and wherever you feel like it. you could, for example, start with your designated dual boot device. installing windows is now as simple as plugging the usb device into your computer and booting it up. from there, click your way through the installation process and come back to this tutorial when you're ready.

step 2: preparing the disks for a dual boot setup

on your fresh install, find your disk partitions. in your search bar enter either "diskmgr" and hit enter or just type "partitions". the former opens your disk manager right away, the latter serves you up with this "create and format hard disk partitions" search result and that's what you're gonna be clicking.

you'll end up on a screen that looks more or less like in the screenshot below. depending on how many disks you've installed this might look different, but the basic gist is the same. we're going to snip a little bit off Disk 0 and make space for kubuntu on it. my screenshot isn't the best example because i'm using the whole disk and in order to practice what i preach i'd have to go against my own advice. that piece of advice is: if this screen intimidates you and you're not sure what you're doing here, hands off your (C:) drive, EFI system, and recovery partition. however, if you're feeling particularly fearless, go check out the amount of "free space" to the right. is there more than 30gb left available? if so, you're free to right click your (C:) drive and click "shrink volume"

this screen will pop up:

the minimum disk space required for kubuntu is 25gb. the recommended one is 50gb. for an installation like this, about 30gb are enough. in order to do that, simply change the value at

Enter the amount of space to shrink in MB: to 30000

and hit Shrink.

once that's done your partitions will have changed and unallocated space at about the size of 30gb should be visible under Disk 0 at the bottom like in the bottom left of this screenshot (courtesy of microsoft.com):

this is gonna be kubuntu's new home on your disk.

step 3: boot order, BIOS/UEFI changes

all you need to do now is plug the kubuntu-usb drive you prepared earlier with rufus into your computer again and reboot that bad boy.

the next step has no screenshots. we're heading into your UEFI/BIOS (by hitting a specific key (like ESC, F10, Enter) while your computer boots up) and that'll look different for everyone reading this. if this section has you completely lost, google how to do these steps for your machine.

a good search term would be: "[YOUR DEVICE (i.e Lenovo, your mainboard's name, etc.)] change boot order"

what you need to do is to tell your computer to boot your USB before it tries to boot up windows. otherwise you won't be able to install kubuntu.

this can be done by entering your BIOS/UEFI and navigating to a point called something along the lines of "boot". from "boot order" to "booting devices" to "startup configuration", it could be called anything.

what'll be a common point though is that it'll list all your bootable devices. the topmost one is usually the one that boots up first, so if your usb is anywhere below that, make sure to drag and drop or otherwise move it to the top.

when you're done navigate to Save & Exit. your computer will then boot up kubuntu's install wizard. you'll be greeted with this:

shocker, i know, but click "Install Kubuntu" on the right.

step 4: kubuntu installation

this is a guided installation. just like when you're installing windows you'll be prompted when you need to make changes. if i remember correctly it's going to ask you for your preferred keyboard layout, a network connection, additional software you might want to install, and all of that is up to you.

but once you reach the point where it asks you where you want to install kubuntu we'll have to make a couple of important choices.

🚨 another important note 🚨

do NOT pick any of the top three options. they will overwrite your already existing windows installation.

click manual instead. we're going to point it to our unallocated disk space. hit continue. you will be shown another disk partition screen.

what you're looking for are your 30gb of free space. just like with the USB drive when we were working with rufus, make sure you're picking the right one. triple check at the very least. the chosen disk will get wiped.

click it until the screen "create a new partition" pops up.

change the following settings to:

New partition size in megabytes: 512

Use as: EFI System Partition

hit OK.

click your free space again. same procedure.

change the following settings to:

New partition size in megabytes: 8000 (*this might be different in your case, read on.)

Use As: Swap Area

hit OK

click your free space a third time. we need one more partition.

change the following settings to:

don't change anything about the partition size this time. we're letting it use up the rest of the resources.

Use as: Ext4 journaling system

Mount Point: /

you're done here as well.

*about the 8000 megabytes in the second step: this is about your RAM size. if you have 4gb instead type 4000, and so on.

once you're sure your configuration is good and ready to go, hit "Install Now". up until here you can go back and make changes to your settings. once you've clicked the button, there's no going back.

finally, select your timezone and create a user account. then hit continue. the installation should finish up... and you'll be good to go.

you'll be told to remove the USB drive from your computer and reboot your machine.

now when your computer boots up, you should end up on a black screen with a little bit of text in the top left corner. ubuntu and windows boot manager should be mentioned there. naturally, when you click ubuntu you will boot into your kubuntu. likewise if you hit windows boot manager your windows login screen will come up.

and that's that folks. go ham on messing around with your linux distro. customize it to your liking. make yourself familiar with the shell (on kubuntu, when you're on your desktop, hit CTRL+ALT+T).

for starters, you could feed it the first commands i always punch into fresh Linux installs:

sudo apt-get update

sudo apt-get upgrade

sudo apt-get install vim

(you'll thank me for the vim one later)

turn your back on windows. taste freedom. nothing sexier than open source, baby.

sources (mainly for the pictures): 1, 2

further reading for the curious: 1, 2

linux basics (includes CLI commands)

kubuntu documentation (this is your new best friend. it'll tell you everything about kubuntu that you need to know.

and finally the promised kde/gnome meme:

[nando161mando]

Via @anarchopuppy

https://prism-break.org/en/

https://12ft.io/

https://www.removepaywall.com/

https://www.hackthissite.org/

https://libcom.org/

https://www.outoftouchwithcostofliving.org.au/

https://www.shodan.io/

https://audioanarchy.org/

https://deathtofascism.com/files/40ways.online.2020.pdf

https://riotmedicine.net/

https://www.libreoffice.org/

https://www.openoffice.org/

https://paywallreader.com/

[adafruit]

TLV320DAC3100 first bops 🔊🎶💃🕺

OK, after many hours spent with Claude on writing a driver for the TLV320DAC3100 (https://www.digikey.com/en/products/detail/texas-instruments/TLV320DAC3100IRHBR/2260591), we finally have it configured using our driver, and playing an MP3 stream on this ESP32. This I2S DAC has a particularly complex PLL and audio-routing system, so it's not one where you can just pipe in I2S data and have it magically play. One nice thing we got working on is the MCLK, which is generated from the BCLK, so it'll work great with anything from an Arduino-compatible to a single-board computer like Raspberry Pi. We're hoping to get the headphone detection working next so that we can turn off the amp when the headphone is plugged in. Also, it should be able to control the volume from the headset buttons. Also, we want to get the internal beep generator going so we can make tones separate from the audio stream for UI notifications.

[blackirishweab]

I couldn't find the post here about homemade wheelchairs, but I saw a post on tiktok just now from @_anneka_s_ actually using one and thought y'all needed to see it too

[tainted-sweet-meats]

Gosh I'm really enjoying the updated gimp 3. the program is so smooth and the brushes are like butter and tool presets are unf <3

[napoleontheintrovertedcat]

[azspot]

And frankly, if we want to create a world in which every single human being can freely share in the sum of all knowledge, and where education, culture, and science are equitably shared as a means to benefit humanity, we should stop attempting to erect these walls.

“Wait, not like that”: Free and open access in the age of generative AI

[nixcraft]

[sentientcitysurvival]

Basic Linux Security (Updated 2025)

Install Unattended Upgrades and enable the "unattended-upgrades" service.

Install ClamAV and enable "clamav-freshclam" service.

Install and run Lynis to audit your OS.

Use the "last -20" command to see the last 20 users that have been on the system.

Install UFW and enable the service.

Check your repo sources (eg; /etc/apt/).

Check the /etc/passwd and /etc/shadow lists for any unusual accounts.

User the finger command to check on activity summaries.

Check /var/logs for unusual activity.

Use "ps -aux | grep TERM" or "ps -ef | grep TERM" to check for suspicious ongoing processes.

Check for failed sudo attempts with "grep "NOT in sudoers" /var/log/auth.log.

Check journalctl for system messages.

Check to make sure rsyslog is running with "sudo systemctl status rsyslog" (or "sudo service rsyslog status") and if it's not enable with "sudo systemctl enable rsyslog".

Perform an nmap scan on your machine/network.

Use netstat to check for unusual network activity.

Use various security apps to test you machine and network.

Change your config files for various services (ssh, apache2, etc) to non-standard configurations.

Disabled guest accounts.

Double up on ssh security by requiring both keys and passwords.

Check your package manager for any install suspicious apps (keyloggers, cleaners, etc).

Use Rootkit Scanners (chkrootkit, rkhunter).

Double SSH Security (Key + Password).

Disabled Guest Accounts.

Enabled Software Limiters (Fail2Ban, AppArmor).

Verify System Integrity via fsck.

Utilize ngrep/other networking apps to monitor traffic.

Utilize common honeypot software (endlessh).

Create new system-launch subroutines via crontab or shell scripts.

Ensure System Backups are Enabled (rsnapshot).

Check for suspicious kernel modules with "lsmod"

[nikjag]

sometimes i dont like talking about projects with people because theyll be like "hey why dont you monetize that?" or "hey why dont you turn that into a business?" like no man it being free to use for anybody is like half the reason why i made that thing

not everything made has to have monetary value sometimes u can just be silly for the sake of being silly or make for the sake of making let me do opensource software in peace ok thanks

[sakuraswordly]

[lokinightfury]

After figuring out the code using the tried and true method of nice pen and a sparkly notebook, it was getting more and more annoying having to write out the symbols so I could translate them.

So of course the obvious answer was to make a font. Right?

Anyways. Enjoy. It's here (fontstruct).