Joseph Zikusooka (ZIK)

Linux Systems Engineer specializing in open source software technologies | Very experienced in building and configuring UNIX/Linux systems and servers. Passionate about developing software applications and hardware for the smart home | Currently serving as technologist at Jambula Labs and the project leader at JambulaTV, a smart home automation and entertainment platform - https://jambulatv.com | This blog focuses on the following areas: Linux How-Tos and Tutorials ::: IT Security News ::: Free and Libre Open Source Software ::: Smart Home Software ::: Digital Innovations in East Africa https://mastodon.social/@jzik | https://github.com/zikusooka

Day: 12 July, 2023

Linux, Python, Security, and Open Source Software TIPS

By Joseph ZikusookaPosted on Posted in Linux
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    💡 TIP: Control and quickly adjust your audio output volume directly from the Linux command line using "wpctl" (WirePlumber Control CLI). You do not need to look up the default sink ID. Just use the built-in @DEFAULT_AUDIO_SINK@ alias:wpctl set-volume @DEFAULT_AUDIO_SINK@ 40%Verify:wpctl get-volume @DEFAULT_AUDIO_SINK@Volume: 0.40NB. On PipeWire-based Linux systems like @fedora @opensuse etc#ZikTIPS #LinuxTips #PipeWire #WirePlumber #CommandLine #CLI #SysAdmin
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    Just pushed a fresh round of updates to Jambula OS Linux including fixes and mitigations for:✅ dirty frag (CVE-2026-43284/CVE-2026-43500)✅ fragnesia (CVE-2026-46300)✅ ssh-keysign-pwn (CVE-2026-46333)Are you running a Raspberry Pi 5? This is a great time to try Jambula OS – a lightweight, secure, CLI-focused Linux platform built around a local-first service architecture.Download image & learn more at:https://jambula.org#JambulaOS #HomeLab
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    𝗝𝗮𝗺𝗯𝘂𝗹𝗮 𝗢𝗦 𝟮𝟬𝟮𝟲.𝟱.𝟬 is here!A lightweight, open source Linux OS for Raspberry Pi 5, homelabs & offline-first edge deployments.This release features:✅ Local XMPP messaging✅ Better 5 GHz Wi-Fi stability✅ Simpler setup tools✅ Protected against the Copy Fail vulnerabilityBuilt for makers, tinkerers & self-hosters @homelab https://jambula.org#JambulaOS #Homelab #XMPP #CopyFail
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    These are wild times! Did Astral just strike a deal with OpenAI? #UV #AI #fedihttps://astral.sh/blog/openai
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    Shoutout to all the Vim fans out there. Vim 9.2 released!#vim #freesoftware #OpenSourcehttps://www.vim.org/vim-9.2-released.php
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    @pid_eins making the case for Varlink over D-Bus @fosdem #FOSDEMhttps://ftp.belnet.be/mirror/FOSDEM/video/2026/ub2147/NFNKEK-varlink-ipc-system-keynote.av1.webm
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    Back after a five-day Internet blockade in Uganda. Currently, most social media sites are still being restricted, but it's nice that my preferred – the #fediverse #mastodon and #signal are unaffected!#uganda #UgandaBlackout #UgandaElections @netblocks @ooni @techwerkers @robloblaw @menos @signalapp
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    RE: https://mastodon.social/@jzik/115700513530117538Heads Up: Image updated to v2012.12.1!
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    Excited to release version 2025.12.0 of Jambula OS, a free, open source Linux OS for SBCs. Perfect for developers, enthusiasts & DIY smart home builders. If you have or you're hoping for a 5 soon, this is the image to grab!Key features:🔒 Robust, Private File Sharing⚙️ Improved Setup & Onboarding🏠 Latest Home AssistantPlus, cool tools for my supportershttps://jambula.org#JambulaOS
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    💡 TIP: On a Linux system using bash, you can compare text strings without worrying about upper or lowercase by using the ,, (lowercase) or ^^ (uppercase) parameter expansion modifiers e.g.EDITION=CommUNITYif [[ ${EDITION,,} = community ]]; then echo "Community"fi${EDITION,,} converts the value to lowercase.@opensuse @fedora @debian #ZikTIPs #bash #scripting #linuxtips #techtips #feditips
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    Not affiliated to this, but sharing in case it's what you're looking for.https://source.network/careers/head-of-developer-relations-role#FediHire #fedigethired #fedijobs
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    RE: https://fosstodon.org/@opensuse/115526151634297376This is probably the most watched conference talk video of me ever! It's from one of my sessions presented at the OpenSUSE Conference earlier this year in Nuremberg, where I introduced Agama, the new Linux installer available in the just released @openSUSE Leap16.If you haven't yet seen it, check it out at: https://youtu.be/LXJbOy-pXMc#OpenSUSE
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    TIP: 💡Check the remaining battery level for your connected bluetooth device on a typical Linux system using the following command:bluetoothctl info AA:BB:CC:DD:00:11 | awk '/Battery Percentage:/ {print $4}' | tr -d '()'* Replace "AA:BB:CC:DD:00:11" with the MAC address of your bluetooth device@openSUSE  @fedora @debian  #ZikTIPS #Bluetooth #Audio #TechTips #SysAdmin #LinuxTips #CLI #Fedora #Debian
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    💡 On a typical Linux system, you can find bluetooth devices that are paired, connected, and trusted using the following command line:bluetoothctl devices [ Paired | Connected | Trusted ] For example: List currently paired bluetooth devices:$ bluetoothctl devices PairedDevice 00:42:XX:YY:ZZ:YY XXBK85Device 00:FD:AA:XX:YY:X8 D-26@opensuse @fedora @debian #ZikTIPS #TechTips #SysAdmin #LinuxTips #CLI #Fedora #Debian
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    So happy to see these two back together! Can't wait to catch up on season 3 of #TheDiplomat with Allison Janney and Bradley Whitford#TheDiplomatS3 #TVShows #TVSeries
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    Vibe coding – Fake it until AI breaks it.#fedihumour #vibecoding #AI #Fediverse
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    If you care about diversity in open source especially from marginalized communities like those across Africa – check out this talk I gave at the recent @opensuse Conference in Germany. I argue that the open source community can no longer afford to overlook developers in these regions. Their talent, perspectives and potential are vital to the future of open source everywhere.https://www.youtube.com/watch?v=olMcEiI8EVw#osC25 #Diversity #Africa
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    Just finished watching an excellent presentation by Dorinda Bassey on "Modernizing Virtio GPU: A Rust-Powered Approach with vhost-device-gpu" at @KernelRecipes @redhat #kr2025 #KernelRecipes #Kernel #Embedded
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    I am really enjoying the talks coming out of the @KernelRecipes conference, running now through September 24. Especially looking forward to @gregkh 's session Today on "The CRA and What It Means for Us" Check out live stream at: https://www.youtube.com/watch?v=U7pZbCnJxEw#CRA #kr2025 #kernel #Embedded
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    RE: https://mastodon.social/@jzik/115225291806144141Thanks to everyone who replied, shared, or boosted my previous post about teaching Linux remotely.I've decided to offer my own 4-person class starting October 8th! It will be remote, & offered at a small cost. The schedule is flexible & course materials will be shared shortly.If you'd like to join or learn more, check the details here:https://joseph.zikusooka.com/?page_id=2807Boosts appreciated again!#Linux #FediHire #FediHired #GetFediHired #FediJobs #jobs #RemoteWork #TechEducation
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