From cb61eb0c7a2b259ebedeca78ce604742d4bbc0e8 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Mon, 18 May 2026 13:14:49 +0200
Subject: ide: fix box character rendering in devcontainer

---
 .devcontainer/x86-64/Containerfile     | 8 +++++++-
 .devcontainer/x86-64/devcontainer.json | 5 +++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/.devcontainer/x86-64/Containerfile b/.devcontainer/x86-64/Containerfile
index 25f98cd..87a33b8 100644
--- a/.devcontainer/x86-64/Containerfile
+++ b/.devcontainer/x86-64/Containerfile
@@ -12,13 +12,19 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install --yes --no-
     git-lfs \
     grub2-common \
     grub-pc \
+    locales \
     mtools \
     ninja-build \
     python3-poetry \
     qemu-system-x86 \
     ssh \
     wget \
-    xorriso
+    xorriso \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
+    dpkg-reconfigure --frontend=noninteractive locales && \
+    update-locale LANG=en_US.UTF-8
 
 RUN update-alternatives --install /usr/bin/cpp cpp /usr/bin/cpp-16 100 && \
     update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-16 100 && \
diff --git a/.devcontainer/x86-64/devcontainer.json b/.devcontainer/x86-64/devcontainer.json
index ebfe64d..dc70596 100644
--- a/.devcontainer/x86-64/devcontainer.json
+++ b/.devcontainer/x86-64/devcontainer.json
@@ -20,5 +20,10 @@
   },
   "containerEnv": {
     "DEBUGINFOD_URLS": "NOSUCHURL"
+  },
+  "remoteEnv": {
+    "LANG": "en_US.UTF-8",
+    "LC_ALL": "en_US.UTF-8",
+    "TERM": "xterm-256color"
   }
 }
\ No newline at end of file
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