avivace

Restore GRUB on a LVM on LUKS setup

Sun, 20 Apr 2025 00:00:00 +0000

I spent some time trying to figure out why reinstalling GRUB always lead me to Waiting for encrypted source device and ultimately dropping me into a cryptsetup shell where I didn’t have any mapped device nor any /dev/sdaX. Here a list of steps to make sure everything is in place. Basic reinstall Suppose you have to install/restore GRUB on a partition table like this one: $ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS sda 8:0 0 178.

Designing healthy and agnostic CI/CD pipelines

Tue, 04 Mar 2025 00:00:00 +0000

Best practices to avoid CI/CD vendor lock-in by keeping pipelines portable, readable, and platform-agnostic. Improve maintainability and flexibility across tools like GitHub Actions and GitLab pipelines.

Which Open Source projects you can donate to

Sun, 09 Feb 2025 00:00:00 +0000

I’m often ask which Free Software/ Open Source projects could use some help and are currently accepting cash donations. Here are some ideas! Note that I’m personally involved with the projects marked with *. Projects Sylvia van Os, maintainer of Catima Nick Craig-Wood, developer of rclone Internet Archive Encode Django gbadev* gbdev* Memberships Italian Linux Society*, an organization supporting and promoting Linux and free software in Italy. Electronic Frontier Foundation (EFF) ondata* - Italian association dedicated to promoting the transparency, openness, and accessibility of public data.

Copying files from Android when USB connection is very slow

Wed, 25 Dec 2024 00:00:00 +0000

↓ Click here to go directly to the solution It feels quite surreal to write a post with such a title in 2025 but I’ve been recently given the simple task to folders of ~10-20GB of Camera galleries from Android phones to back them up to a physical drive. Surely a joke at this moment in time, with devices in the GHz range and tens of gigs of RAM, right?

Git clone from Azure DevOps gives remote: VS403463 error

Mon, 16 Dec 2024 00:00:00 +0000

If you let the battery drain out completely while the headset is paired, the device will disconnect and enter a “glitched” state where it becomes completely unrensposive (not even after charging it or trying to plug it via USB instead of the bluetooth dongle) and the only thing it’ll do is blink rapidly twice in red when you press the microphone button to turn it on or off.

Fix EPOS Adapt 260 headphones only red blinking

Sun, 18 Aug 2024 00:00:00 +0000

Introduce one thing at the time

Tue, 30 Jul 2024 00:00:00 +0000

When modernizing your technology/work framework you don’t need to introduce: A full Kubernetes setup Helm charts Complete CI/CD pipelines (and let alone templates) Full fledged scrum cerimonies Production level security requirements to deploy all at the same time. In fact, it may even be damaging long term or counter productive. The cognitive load and the practical new blockers that will inevitably pop up when trying out / implement new tools (especially the ones changing paradigms, e.

Open Source Maintainers guide

Sun, 28 Jul 2024 00:00:00 +0000

Monitor links It may seem obvious, but maintaining links working across every kind of web page of your project is crucial for ensuring your visitors and potential users have a good experience when learning. Broken links can lead to frustration and may discourage users, making them leave sooner than expected. Implement scripts to regularly check the status of links helps to promptly identify any that are breaking. Put those scripts in CIs.

Circumventing firewalls with HTTPS traffic

Wed, 22 Nov 2023 19:58:30 +0200

Firewalls that only allow standard ports (such as HTTP, HTTPS) can be easily circumvented by proxying all traffic trough port 443, using an external machine. Here’s a minimal setup to obtain so with proxytunnel: Apache2, running on the external machine: [...] ProxyRequests On AllowConnect 22 <Proxy *> Order deny,allow Deny from all </Proxy> <Proxy 127.0.0.1> Order deny,allow Allow from all </Proxy> [...] Local SSH configuration: Host vps_proxy ProxyCommand proxytunnel -q -E -p VPS_IP:443 -d 127.

Android rooting in 2022

Tue, 01 Feb 2022 19:58:30 +0200

Rooting a Xiaomi phone in 2022

Docker Quickstart

Fri, 20 Nov 2020 00:00:00 +0000

Cleaning up: Stopped containers: docker container prune Stop all containers: docker container stop $(docker container ls -aq) Dangling images: docker image prune Images with no containers: docker image prune -a All but volumes: docker system prune All: docker system prune --volumes Volumes not in use: docker volume prune Remove all containers: docker rm $(docker ps -aq) Remove all images: docker rmi $(docker images -q) docker run --rm -it --entrypoint bash testror docker run --rm -it --entrypoint bash --user root testror docker logs -f ror2-server

gbdev updates - November 2020

Sat, 07 Nov 2020 19:58:30 +0200

About gbdev “gbdev” is the home of the Game Boy development scene. A community of retro-hardware enthusiasts. Maintaning and developing many projects, including RGBDS, the de-facto standard development toolkit, curated collections of resources, documentation efforts, digital preservation and an open archive of homebrews. Follow the Game Boy Development (gbdev) initiative on Twitter, join us on Discord or check our website at gbdev.io. I serve as community leader and directly mantain some of the projects under the gbdev umbrella.

What to ask in job interviews

Tue, 01 Sep 2020 19:58:30 +0200

Context: I’m a computer scientist/engineer and during 2018 and 2019 (while I was 23-24) I started being involved and committed in a lot of side activities, while getting my MS in Computer Science. I’ve been recently asked by a lot of friends and collegues finishing college, transitioning jobs or starting a master how to choose a job and what factors/which positions and employers should they consider in picking activities and contracts.

Debian Sid logbook

Thu, 20 Dec 2018 19:58:30 +0200

LaTex package “float” broke after texlive 20190830 After updating texlive to the 20190830 version, the “float” package started working, giving ! LaTeX Error: Unknown float option 'H'. even if the same file was compiling correctly before and \usepackage{float} is used. You need to downgrade at least to the 20190227 version. I did apt purge texlive* then tried to install texlive from the stable distribution (buster is shipping 20190227) but even after having purged everything related to texlive the system could not install that version for broken dependencies/wrong versions.

Girls Code It Better

Tue, 13 Nov 2018 00:00:00 +0000

Post mortem of my experience teaching a Coding class for the "Girls Code it Better" project.

Block someone who blocked you on Instagram

Mon, 30 Jul 2018 19:58:30 +0200

The blocking mechanism on Instagram isn’t exactly well-designed: Blocking someone allows you to be unblock-able from that account, while still being able to view its content freely, completely hidden for the other account (unblocking and re-blocking fastly). There’s no way to know if someone is watching your stories or content if they have blocked you, since watching (with a script) for the split second they have unblocked you to see your content will rapidly lead to a rate-limiting error.

The Perfect Markdown + LaTeX workflow

Sat, 28 Jan 2017 19:58:30 +0200

How to mix plain markdown and latex and get beautiful results while writing human stuff. (with results being PDF, XHTML, HTML5, docx, EPUB, LaTex and many more). Pandoc allows you to get the best of the two worlds without compromises: readable plain text files with latex expressions and everything offered by latex rendering and packages. You can write code-blocks with specific language syntax highlight, normal markdown and LaTex parts. To place something written in TeX in mathmode, use $ signs to enclose the math you want to display, exactly what you would do in a normal LaTex file.

PunkBuster error - 'The extract file failed an authenticity check'

Thu, 27 Oct 2016 19:58:30 +0200

Recently a friend tried to install Battlefield 3 after some years and was unable to install Punkbuster due to the error The extract file failed an autheticity check during the services install.

There’s no official solution or reason to this error. basically, Punkbuster services can’t be copied/installed or can’t run correctly.

First of all clean your system from every trace of PB software (regedit, services) and try an admin-install of the PunkBuster Setup (PBSetup) and the PunkBuster Service Installer (pbsvc).

If you keep getting the error, the installer can’t copy the services executables into the windows folder (or it’s copying a corrupt copy of them). We can force this manually moving these files.

Web scraping with AutoHotKey

Thu, 27 Oct 2016 19:58:30 +0200

Yesterday I was working on a AutoHotKey project and was wondering if It was possible to automate the extraction of the age from a facebook profile without making use of API or Facebook Graph. This applies to whatever value you can’t (or you don’t want) obtain through official APIs. IE := ComObjCreate("InternetExplorer.Application") IE.Visible := True Check(){ ComObjError(0) DOB := "" Loop { Elements := IE.document.getElementsByClassName("_50f3") Loop, % Elements.Length ;if Elements[A_Index-1].innerText ~= "^Born on" ; NAME := Elements[A_Index-1].

Allow only SFTP and chroot user