oh-my-zsh rework + LiteLLM model presets

README.md

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+# dotfiles
+
+Personal dotfiles for Coder workspaces. Coder clones this repo and runs install.sh
+on workspace start (configured via the workspace template parameter dotfiles_uri).
+
+## What gets installed
+- zsh (if missing) + oh-my-zsh + zsh-autosuggestions + zsh-syntax-highlighting
+- agnoster theme, plugins: git docker python pip uv vscode command-not-found
+- ~/.zshrc, ~/.gitconfig, ~/.config/models.env (sourced by zshrc)
+- Default shell flipped to zsh
+
+## Model presets
+The workspace template bakes the LiteLLM connection (OPENAI_API_KEY +
+OPENAI_BASE_URL pointing at LAN LiteLLM). models.env adds a tiered picker:
+`MODEL_CODE`, `MODEL_BIG_CODE`, `MODEL_GENERAL`, `MODEL_FAST`,
+`MODEL_REASON`, `MODEL_PRO`, `MODEL_EMBED`.
+
+## Layout
+- install.sh — idempotent installer, runs on every workspace start
+- home/ — contents mirrored into $HOME

home/.config/models.env

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+# LiteLLM model presets. Sourced by .zshrc; overridable per-shell.
+# (Connection envs are baked into the workspace template; these are the picker.)
+export MODEL_CODE='qwen3-coder-30b-a3b-instruct'
+export MODEL_BIG_CODE='devstral-2-123b-instruct-2512'
+export MODEL_GENERAL='qwen3.5-397b-a17b'
+export MODEL_FAST='mistral-small-latest'
+export MODEL_REASON='deepseek-r1-distill-llama-70b'
+export MODEL_PRO='gemini-2.5-pro'
+export MODEL_EMBED='text-embedding-3-large'

home/.gitconfig

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+[user]
+    name = fkrebs
+    email = fkrebs@nucli.de
+[init]
+    defaultBranch = main
+[pull]
+    rebase = true
+[push]
+    default = simple
+    autoSetupRemote = true
+[core]
+    editor = nano
+[diff]
+    algorithm = histogram
+[alias]
+    s = status -sb
+    co = checkout
+    br = branch
+    lg = log --oneline --graph --decorate -20

home/.zshrc

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+# Oh My Zsh
+export ZSH="$HOME/.oh-my-zsh"
+ZSH_THEME="agnoster"
+plugins=(git docker python pip uv vscode command-not-found zsh-autosuggestions zsh-syntax-highlighting)
+source "$ZSH/oh-my-zsh.sh"
+
+# User PATH
+export PATH="$HOME/.local/bin:$PATH"
+export EDITOR="${EDITOR:-nano}"
+export MPLBACKEND="${MPLBACKEND:-Agg}"
+
+# Source LiteLLM model presets if dotfiles delivered them
+[ -f "$HOME/.config/models.env" ] && source "$HOME/.config/models.env"
+
+# Aliases
+alias ll='ls -lah --color=auto'
+alias g='git'
+alias gs='git status -sb'
+alias gd='git diff'
+alias gco='git checkout'
+alias uvr='uv run'
+alias uvs='uv sync'
+
+# Model-switch aliases for aider (override per-call)
+alias aider-code='AIDER_MODEL=$MODEL_CODE      aider'
+alias aider-big='AIDER_MODEL=$MODEL_BIG_CODE   aider'
+alias aider-reason='AIDER_MODEL=$MODEL_REASON  aider'
+alias aider-fast='AIDER_MODEL=$MODEL_FAST      aider'
+
+mkproj() {
+  local name="$1"
+  [ -z "$name" ] && echo 'usage: mkproj <name>' && return 1
+  mkdir -p "$HOME/work/$name" && cd "$HOME/work/$name" && uv init
+}

install.sh

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+#!/usr/bin/env bash
+# Idempotent install: ensure zsh + oh-my-zsh, then symlink configs.
+set -euo pipefail
+SRC=$(cd "$(dirname "$0")" && pwd)
+
+# 1. zsh (workspace base image may or may not have it)
+if ! command -v zsh >/dev/null 2>&1; then
+  sudo apt-get update -qq
+  sudo apt-get install -y --no-install-recommends zsh
+fi
+
+# 2. oh-my-zsh
+if [ ! -d "$HOME/.oh-my-zsh" ]; then
+  RUNZSH=no CHSH=no KEEP_ZSHRC=yes \
+    sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
+fi
+
+# 3. zsh plugins (autosuggestions + syntax highlighting)
+ZSH_CUSTOM=${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}
+[ -d "$ZSH_CUSTOM/plugins/zsh-autosuggestions" ] || \
+  git clone -q https://github.com/zsh-users/zsh-autosuggestions "$ZSH_CUSTOM/plugins/zsh-autosuggestions"
+[ -d "$ZSH_CUSTOM/plugins/zsh-syntax-highlighting" ] || \
+  git clone -q https://github.com/zsh-users/zsh-syntax-highlighting "$ZSH_CUSTOM/plugins/zsh-syntax-highlighting"
+
+# 4. symlink every file under home/ into $HOME (idempotent)
+while IFS= read -r f; do
+  rel=${f#"$SRC/home/"}
+  mkdir -p "$HOME/$(dirname "$rel")"
+  ln -sf "$SRC/home/$rel" "$HOME/$rel"
+done < <(find "$SRC/home" -mindepth 1 -type f)
+
+# 5. default shell -> zsh
+CURSHELL=$(getent passwd "$USER" | cut -d: -f7)
+if [ "$CURSHELL" != "$(command -v zsh)" ]; then
+  sudo chsh -s "$(command -v zsh)" "$USER" || true
+fi
+
+echo "dotfiles installed: zsh + ohmyzsh + symlinks from $SRC/home"