Add translationKey and French slugs to link FR/EN articles

For all French posts with English counterparts, add translationKey to
both FR and EN versions so the language switcher can link them. Also
give French posts proper French slugs and add aliases to preserve the
old English-slug URLs.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

content/en/post/china-for-digital-nomads/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Southern China for Digital Nomads: Between Wonder and Survival"
 date: !!timestamp '2026-02-05 10:30:00'
+translationKey: china-for-digital-nomads
 image: /post/china-for-digital-nomads/og.webp
 tags:
 - digital nomad

content/en/post/cloud-init-to-deploy-localai-in-5-minutes/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Cloud-init to deploy LocalAI in the cloud in 5 minutes"
 date: !!timestamp '2024-08-27 13:12:00'
+translationKey: cloud-init-deploy-localai
 image: /post/cloud-init-to-deploy-localai-in-5-minutes/og.webp
 tags:
 - ai

content/en/post/evaluate-local-ai-with-ease-on-ovhcloud/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Master Your AI: Explore Local AI with OVH for Just 1 Dollar"
 date: !!timestamp '2024-09-04 11:12:00'
+translationKey: evaluate-local-ai-ovhcloud
 image: /post/evaluate-local-ai-with-ease-on-ovhcloud/og.webp
 toc: true
 tags:

content/en/post/gamification-of-a-advanced-linux-sysadmin-course/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Gamification of a Linux system administration course"
 date: !!timestamp '2023-06-07 16:07:00'
+translationKey: gamification-linux-sysadmin
 image: /post/gamification-of-a-advanced-linux-sysadmin-course/og.webp
 tags:
 - teaching

content/en/post/hathoris-release/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Hathoris: Bringing Back the Simplicity of HiFi Systems in the Digital Age"
 date: !!timestamp '2025-04-26 14:12:03'
+translationKey: hathoris-release
 image: /post/hathoris-release/og.webp
 tags:
 - audio

content/en/post/pragmatic-architecture-for-productions/index.md

@@ -1,6 +1,7 @@
 ---
 title: The pragmatic architecture of my production projects
 date: !!timestamp '2026-03-05 15:00:00'
+translationKey: pragmatic-architecture-productions
 tags:
 - architecture
 - web

content/en/post/self-hosting/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Self-hosting: for a decentralized and responsible Internet"
 date: !!timestamp '2023-05-22 10:05:00'
+translationKey: self-hosting
 image: /post/self-hosting/og.webp
 tags:
 - privacy

content/en/post/unveiling-whiteout-files/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Unveiling Whiteout Files: Do you know how file deletions are handled between layers of a Docker image?"
 date: !!timestamp '2023-11-09 15:35:00'
+translationKey: unveiling-whiteout-files
 image: /post/unveiling-whiteout-files/og.webp
 tags:
 - kernel

content/en/post/use-additional-ipv6-blocks-from-isp/index.md

@@ -1,6 +1,7 @@
 ---
 title: Use the additional IPv6 blocks of the Free and Orange network
 date: !!timestamp '2023-04-05 14:43:00'
+translationKey: use-additional-ipv6-isp
 tags:
 - network
 - ipv6

content/en/post/use-ipv6-in-docker/index.md

@@ -1,6 +1,7 @@
 ---
 title: Give IPv6 connectivity to its Docker containers using an IPv6 block from its ISP
 date: !!timestamp '2023-05-04 15:10:00'
+translationKey: use-ipv6-docker
 tags:
 - network
 - ipv6

content/en/post/waveshare-e-paper-display-on-linux-without-raspberry-pi/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Using Waveshare e-ink screens without Raspberry Pi"
 date: !!timestamp '2023-08-02 11:37:00'
+translationKey: waveshare-epaper-without-raspberry-pi
 image: /post/waveshare-e-paper-display-on-linux-without-raspberry-pi/og.webp
 tags:
 - linux

content/en/post/woodpecker-ci-mixing-http-grpc-on-one-domain-nginx/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Unify HTTP requests and GRPC calls on a single domain for more flexible configuration: example with Woodpecker"
 date: !!timestamp '2023-10-27 09:35:00'
+translationKey: woodpecker-ci-http-grpc-one-domain
 image: /post/woodpecker-ci-mixing-http-grpc-on-one-domain-nginx/og.webp
 tags:
 - network

content/en/post/xorg-duplicate-a-window-on-2-screens/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Duplicate window display on 2 screens with X.org"
 date: !!timestamp '2023-12-09 11:34:00'
+translationKey: xorg-duplicate-window-2-screens
 tags:
 - teaching
 - conference