Guganraj Rengaraju

21 • Linux • DevOps • Systems
Building, self-hosting, breaking, fixing 🚀

[Guganraj Rengaraju @mrtuxcoder]

Shot these in Thanjavur, 2023. 🛕🌾

[Rabi Shanker Guha @rabi_guha]

ChatGPT launched their version of Generative UI yesterday. We took it apart

tldr; the agent never write raw code. It emits DIL (a new language), the server compiles and streams it, the client renders it using a component set so that it feels native https://t.co/EzfM43fgkf

[Guganraj Rengaraju @mrtuxcoder]

To everyone job hunting: How many hours a day do you honestly spend learning, building, and practicing? Let’s drop the hustle culture numbers and get real.

[Guganraj Rengaraju @mrtuxcoder]

@lochan_twt i read the article and it's helpful ❤️..

[Guganraj Rengaraju @mrtuxcoder]

@lochan_twt

[Guganraj Rengaraju @mrtuxcoder]

Just found out AWS offers up to $200 in credits for new users through sign-up + simple activities.
Could be a good way to experiment with cloud, deploy projects, and learn AWS hands-on without spending much.

[Guganraj Rengaraju @mrtuxcoder]

Built a Linux installation script for LANBox that doesn’t even require cloning the source code.

It pulls the latest Docker images directly from GHCR, configures the environment, and starts LANBox with Docker Compose.

Fresh Linux machine → run script → LANBox running. 🐧🐳

[Guganraj Rengaraju @mrtuxcoder]

LANBox = Google Drive, but local. 🏠

Your computer provides the storage. Other devices on the same network connect through a browser and can upload, download, organize, preview, rename, and delete files.

[Guganraj Rengaraju @mrtuxcoder]

While building LANBox, I wondered how Linux handles permissions when Node.js fs creates folders or deletes files.

I learned Node.js doesn’t have its own Linux user - it runs with the UID/GID of whoever starts the process. sudo → root.

[Guganraj Rengaraju @mrtuxcoder]

Built LANBox, a local-network file sharing app to understand how web apps interact with Linux filesystems through fs.

Next: Dockerize it, automate setup, and build CI/CD around it.
The goal isn’t more app code - it’s learning how to deploy, operate, and automate systems.

[Guganraj Rengaraju @mrtuxcoder]

Switched from Rocky Linux to Fedora 44.
Honestly, I’ve been using GNOME for a while, but KDE Plasma is just too good right now.

[Guganraj Rengaraju @mrtuxcoder]

Turned an old Lenovo into my first homelab. Started with Ubuntu Server and Tailscale, got my first deployment working, and eventually built a CI/CD pipeline with GitHub Actions. A few days of breaking things, fixing things, and learning. Next up: Docker.

[Guganraj Rengaraju @mrtuxcoder]

Weekly Recap — Week 22

Completed Kestra Fundamentals and earned my certificate. 🚀
Semester exams are going well, with only one left.
After that, back to Linux practice..

#BuildInPublic

[Guganraj Rengaraju @mrtuxcoder]

@dehydrated_bear bruh, add your name in your kestra account, so that you will have your name in this certificate..

[Guganraj Rengaraju @mrtuxcoder]

Successfully completed the #KestraAcademy challenge and received my certificate! 🚀

Big thanks to @WeMakeDevs and @kestra_io for this valuable first hands-on experience with workflow orchestration and modern automation.

[Guganraj Rengaraju @mrtuxcoder]

Weekly Recap — Week 21

Studying for semester exams
Finished teaching my student in web designing
Stayed consistent with fitness, daily steps, and healthier routines
Continued rebuilding discipline through Linux practice, self-control, and lifestyle changes

[Guganraj Rengaraju @mrtuxcoder]

@samirande_

[Guganraj Rengaraju @mrtuxcoder]

@HngPhVnh192164 true brother!!

[Guganraj Rengaraju @mrtuxcoder]

Weekly Recap — Week 20

Touched grass.
Stayed consistent with daily physical activity and reduced sugar / short-form content.
Practiced 2 mock question sets and reviewed mistakes (RHCSA).

#BuildInPublic

[Guganraj Rengaraju @mrtuxcoder]

@JacobSobolev It felt pretty manageable since I’ve been practicing regularly instead of just focusing on theory.