Building things, and writing it down: cloud, generative AI, homelab and my own tools, by Walid Karray.https://walid.tn/https://walid.tn/posts/flux-talos-gitops-homelab/https://walid.tn/posts/flux-talos-gitops-homelab/How my homelab deploys about twenty apps from git with Flux on a two-node Talos cluster, and why Docker Compose hosts, k3s and Argo CD were set aside.Tue, 20 Oct 2026 12:00:00 GMThttps://walid.tn/posts/how-i-run-my-homelab-2026/https://walid.tn/posts/how-i-run-my-homelab-2026/My homelab today: one Proxmox host in a 16U rack, two Talos Linux VMs as a Kubernetes cluster, network tiers like a cloud VPC, and Tailscale as the only door.Wed, 14 Oct 2026 10:00:00 GMThttps://walid.tn/posts/homelab-built-by-coding-agents/https://walid.tn/posts/homelab-built-by-coding-agents/How coding agents write my homelab: the AGENTS.md files and skills they follow, the guardrails, the incidents that became rules, and the risk I accept.Thu, 08 Oct 2026 19:46:43 GMThttps://walid.tn/posts/proxmox-synology-ups-shutdown-nut/https://walid.tn/posts/proxmox-synology-ups-shutdown-nut/How a Proxmox host and a Synology NAS shut down in time on a PowerWalker UPS with NUT, why its 0% low-battery threshold can't be trusted, and the fix.Tue, 06 Oct 2026 20:44:15 GMThttps://walid.tn/posts/i-got-tired-of-aws-sso-login-so-i-built-a-terminal-dashboard-that-never-lets-my-credentials-die/https://walid.tn/posts/i-got-tired-of-aws-sso-login-so-i-built-a-terminal-dashboard-that-never-lets-my-credentials-die/awssesh, a terminal dashboard for AWS SSO profiles: live status and expiry for each, auto-refresh of pinned profiles, and credentials exported to your shell.Fri, 12 Jun 2026 10:22:31 GMThttps://walid.tn/posts/why-i-stopped-paying-for-time-tracking-saas-and-built-presto-instead/https://walid.tn/posts/why-i-stopped-paying-for-time-tracking-saas-and-built-presto-instead/Presto, a self-hosted time tracker for freelancers: click worked days on a calendar, export monthly activity reports as PDF, and run it as one Docker image.Thu, 05 Mar 2026 21:23:32 GMThttps://walid.tn/posts/automating-tailscale-certificate-configuration-on-synology-dsm/https://walid.tn/posts/automating-tailscale-certificate-configuration-on-synology-dsm/A bash script, run as root over SSH, that issues a Tailscale certificate with tailscale cert and installs it as Synology DSM's default certificate.Tue, 30 Jan 2024 22:32:22 GMThttps://walid.tn/posts/mastering-static-website-hosting-on-aws-with-terraform-a-step-by-step-tutorial/https://walid.tn/posts/mastering-static-website-hosting-on-aws-with-terraform-a-step-by-step-tutorial/Host a static website on AWS with Terraform: a private S3 bucket behind CloudFront with OAC, an ACM certificate, Route 53 DNS and a www redirect function.Sun, 15 Oct 2023 12:36:25 GMThttps://walid.tn/posts/building-a-todo-app-with-typescript-using-clean-hexagonal-architecture-directory-structure/https://walid.tn/posts/building-a-todo-app-with-typescript-using-clean-hexagonal-architecture-directory-structure/The directory layout of a TypeScript todo app in Clean (Hexagonal) Architecture: entities, use cases and repository interfaces in the core, TypeORM outside it.Wed, 19 Apr 2023 09:14:08 GMThttps://walid.tn/posts/configuring-a-custom-domain-for-aws-lambda-function-url-with-serverless-framework/https://walid.tn/posts/configuring-a-custom-domain-for-aws-lambda-function-url-with-serverless-framework/Put an AWS Lambda Function URL behind a custom domain with the Serverless Framework, using CloudFront, an ACM certificate and Route 53 instead of API Gateway.Sat, 07 May 2022 23:53:08 GMThttps://walid.tn/posts/php-slugify-utf8-latin-arabic-chinese/https://walid.tn/posts/php-slugify-utf8-latin-arabic-chinese/A short PHP function that turns any UTF-8 string, in Latin, Arabic, Chinese or other scripts, into a URL slug, with an optional length limit.Thu, 23 Feb 2017 10:49:25 GMThttps://walid.tn/posts/facebook-graph-api-get-group-id-from-url/https://walid.tn/posts/facebook-graph-api-get-group-id-from-url/A PHP bot built on cURL and DOMXPath that logs in to Facebook and reads a group's numeric ID from its page, since the Graph API and FQL could not.Tue, 10 Sep 2013 21:29:24 GMThttps://walid.tn/posts/building-a-safari-extension-step-by-step-part-2/https://walid.tn/posts/building-a-safari-extension-step-by-step-part-2/Part 2 of the Safari extension tutorial: write the injected script, global page and popover of a visited links logger, then test and package it.Mon, 17 Jun 2013 11:00:06 GMThttps://walid.tn/posts/building-a-safari-extension-step-by-step-part-1/https://walid.tn/posts/building-a-safari-extension-step-by-step-part-1/Part 1 of a Safari extension tutorial: enable Extension Builder, then configure a visited links logger with a toolbar button, popover and injected scripts.Fri, 14 Jun 2013 11:30:43 GMThttps://walid.tn/posts/feeling-nostalgic-for-the-amstrad-cpc-6128/https://walid.tn/posts/feeling-nostalgic-for-the-amstrad-cpc-6128/My memories of the Amstrad CPC 6128: the games I played, its green monitor and 3-inch floppies, and my first lines of Locomotive BASIC.Sat, 26 May 2012 15:30:03 GMThttps://walid.tn/posts/java-video-tutorials-for-beginners-in-tunisian-dialect/https://walid.tn/posts/java-video-tutorials-for-beginners-in-tunisian-dialect/Fifteen beginner Java video tutorials in Tunisian dialect by Mohamed Turki, from installing the JDK and Eclipse to classes, inheritance, interfaces and collections.Sun, 15 Apr 2012 00:11:03 GMThttps://walid.tn/posts/how-linux-is-built/https://walid.tn/posts/how-linux-is-built/A short Linux Foundation video, based on the "Who Writes Linux" report, on how the largest collaborative project in computing history is organized.Sun, 08 Apr 2012 19:57:44 GMThttps://walid.tn/posts/how-to-deploy-openacs-tr-069-on-jboss-as-5-1/https://walid.tn/posts/how-to-deploy-openacs-tr-069-on-jboss-as-5-1/Step-by-step instructions for running the OpenACS 0.4 beta TR-069 auto-configuration server on JBoss AS 5.1 GA with JDK 1.6 and MySQL on Linux.Thu, 05 Apr 2012 20:36:40 GMThttps://walid.tn/posts/tunisian-python-community-launches-its-web-portal/https://walid.tn/posts/tunisian-python-community-launches-its-web-portal/The Tunisian Python community put its web portal online in April 2012, with a coming-soon message and links to its Facebook and Twitter pages.Sun, 01 Apr 2012 21:19:02 GMThttps://walid.tn/posts/red-hat-tritux-soa-seminar-photos-tunis/https://walid.tn/posts/red-hat-tritux-soa-seminar-photos-tunis/Photos from the March 2012 Red Hat and Tritux seminar on SOA and JBoss middleware at the Hotel Concorde in Tunis: the talks, the stands and the Tritux team.Sun, 01 Apr 2012 19:52:55 GMThttps://walid.tn/posts/soa-in-information-systems-red-hat-seminar-2012/https://walid.tn/posts/soa-in-information-systems-red-hat-seminar-2012/Red Hat and its Tunisian partner Tritux held a seminar in Tunis in March 2012 on what service-oriented architecture (SOA) brings to enterprise information systems.Sun, 01 Apr 2012 19:35:04 GMThttps://walid.tn/posts/customize-the-unity-launcher-on-ubuntu/https://walid.tn/posts/customize-the-unity-launcher-on-ubuntu/Four steps to change the Unity launcher's icon size, speed, opacity and behavior on Ubuntu 11.04 and 11.10 with the CompizConfig Settings Manager.Sun, 26 Feb 2012 00:23:30 GMThttps://walid.tn/posts/a-quick-guide-to-install-mysql-server-on-ubuntu-linux/https://walid.tn/posts/a-quick-guide-to-install-mysql-server-on-ubuntu-linux/Install the MySQL server and client on Ubuntu with apt-get, check that the service is running, set a root password and control starting at boot.Tue, 21 Feb 2012 19:57:49 GMT