obsidian/wiki/concepts/_index.md
2026-04-28 22:26:04 +01:00

12 KiB

Concepts — Topic Index

Atomic knowledge articles extracted from Claude Code sessions. Each article covers one distinct concept, pattern, or technique.

Article Summary Source Updated
wiki/concepts/librechat-openid-auth LibreChat v0.8.4 OpenID/OAuth auth internals — ALLOW_SOCIAL_REGISTRATION, openidId requirement, state mismatch diagnosis daily/2026-04-15.md 2026-04-15
wiki/concepts/msal-vanilla-js-pkce MSAL.js v5 UMD script-tag PKCE for SPAs without bundlers — Azure portal platform type, Node.js JWKS validation daily/2026-04-15.md 2026-04-15
wiki/concepts/shell-static-deploy-patterns Shell deploy scripts for static frontends — cp -r vs glob, Apache reload requirement, setup vs deploy distinction daily/2026-04-15.md 2026-04-15
wiki/concepts/fish-shell-path-config Fish shell PATH configuration — /usr/local/bin not in default PATH, fish_add_path, SSH aliases as Fish functions daily/2026-04-15.md 2026-04-15
wiki/concepts/microsoft-graph-api-mailbox-migration Graph API app-only (client credentials) flow for reading shared mailboxes — Mail.Read.All, EML download, pagination daily/2026-04-16.md 2026-04-16
wiki/concepts/mailcow-maildir-import Mailcow Maildir volume path, rsync import, chown 5000:5000, mandatory doveadm index — without indexing IMAP shows nothing daily/2026-04-16.md 2026-04-16
wiki/concepts/fastapi-mongodb-role-migration Adding UserRole enum + MongoDB schema validator migration + idempotent seed in FastAPI lifespan daily/2026-04-16.md 2026-04-16
wiki/concepts/monorepo-deploy-script-pitfall deploy.sh checking backend/.git / frontend/.git silently skips git pull in monorepos — fix: single git pull at root daily/2026-04-16.md 2026-04-16
wiki/concepts/nextjs-basepath-auth-redirects Next.js basePath requires all auth redirect strings to include the prefix — middleware and API routes don't auto-prepend daily/2026-04-16.md 2026-04-16
wiki/concepts/python-service-deployment-dotenv Python service deploy checklist — venv pip install after git pull, .env.example → .env for new config.py requirements daily/2026-04-16.md 2026-04-16
wiki/concepts/openai-max-completion-tokens OpenAI newer models reject max_tokens — must use max_completion_tokens in both raw API calls and internal wrappers daily/2026-04-17.md 2026-04-17
wiki/concepts/fish-abbr-patterns Fish abbr expands visibly (git/docker/uv), alias for transparent replacements (ls/cat); forgit conflict resolution daily/2026-04-17.md 2026-04-17
wiki/concepts/bitbucket-mcp-atlassian Bitbucket MCP via aashari/mcp-server-atlassian-bitbucket; GitHub MCP is GitHub-only; Atlassian API tokens replace App Passwords daily/2026-04-17.md 2026-04-17
wiki/concepts/proxmox-mcp-server canvrno/ProxmoxMCP is the best community Proxmox MCP server; install to global Claude Code config for any-project access daily/2026-04-18.md 2026-04-18
wiki/concepts/proxmox-vm-management-methods Proxmox VM creation approaches — SSH+qm (ad-hoc), REST API, Terraform, Ansible, MCP; when to use each daily/2026-04-18.md 2026-04-18
wiki/concepts/home-assistant-proxmox-install HAOS on Proxmox via community-scripts one-liner — Default Settings, VM specs, why VM over LXC daily/2026-04-19.md 2026-04-19
wiki/concepts/homepage-proxmox-widget-quirks Homepage v0.10.9 proxmox widget quirks — type field required, pnpm start, duplicate env vars, SSL, ARP; replaced by Dashy daily/2026-04-19.md 2026-04-19
wiki/concepts/lxc-arp-cache-api-failures Stale ARP cache entries in LXC cause silent API failures — ip neigh flush dev eth0 is the fix daily/2026-04-19.md 2026-04-19
wiki/concepts/nodejs-ssl-system-trust-store Node.js ignores Linux system trust store — NODE_TLS_REJECT_UNAUTHORIZED=0 or NODE_EXTRA_CA_CERTS must be in systemd unit daily/2026-04-19.md 2026-04-19
wiki/concepts/tailscale-dns-homelab Tailscale Global Nameserver + Override local DNS makes internal domains resolve on mobile via AdGuard daily/2026-04-19.md 2026-04-19
wiki/concepts/remote-server-dotfiles-bootstrap Full-stack remote dotfiles bootstrap via sshpass r() helper — Fish, Starship, Neovim, CLI tools, fnm, conf.d pattern daily/2026-04-19.md 2026-04-19
wiki/concepts/homarr-proxmox-integration Homarr Proxmox integration cert trust — PVE root CA in trusted-certificates/, Termix SSH REST API, docker-socket-proxy daily/2026-04-19.md 2026-04-19
wiki/concepts/export-endpoint-filter-pattern PDF/CSV exports must receive variant_ids from frontend — frontend-only selection is invisible to backend renderers daily/2026-04-20.md 2026-04-20
wiki/concepts/ollama-lxc-ram-requirements Ollama in LXC loads Intel oneAPI toolkit (~1.8 GB overhead) even on CPU-only inference — minimum 6 GB RAM for 7B model daily/2026-04-21.md 2026-04-21
wiki/concepts/beszel-monitoring-deployment Beszel hub + agent deployment across Proxmox host and LXC containers — Ed25519 key auth, port assignment, systemd setup daily/2026-04-21.md 2026-04-21
wiki/concepts/adguard-dns-rewrites-homelab AdGuard DNS rewrites for *.ai-impress.com wildcard → NPM IP; single entry covers all internal services daily/2026-04-21.md 2026-04-21
wiki/concepts/prometheus-joules-watts-gotcha rate(joules_total) already returns watts — multiplying by 1000 causes W→kW display bug in Grafana dashboards daily/2026-04-21.md 2026-04-21
wiki/concepts/old-gpu-sysfs-metrics AMD GCN 1.0 (Oland) and Intel HD 630 don't expose gpu_busy_percent via sysfs — temperatures still available via hwmon daily/2026-04-21.md 2026-04-21
wiki/concepts/chartjs-time-axis-adapter Chart.js type:time axis requires chartjs-adapter-date-fns registered — without it chart silently fails to render daily/2026-04-21.md 2026-04-21
wiki/concepts/uptime-kuma-socketio-management Uptime Kuma has no REST API — uses Socket.IO; management done via SQLite directly daily/2026-04-21.md 2026-04-21
wiki/concepts/proxmox-container-502-misdiagnosis 502 Bad Gateway ≠ dead container — often nginx misconfiguration inside CT; always confirm visually before destructive actions daily/2026-04-21.md 2026-04-21
wiki/concepts/git-includeif-per-remote Git includeIf hasconfig:remote.*.url auto-applies correct email per remote — GitHub vs Bitbucket/work without per-repo config daily/2026-04-23.md 2026-04-23
wiki/concepts/dns-youtube-ad-blocking DNS-based ad blocking cannot block YouTube ads — Google serves ads and content from the same domains; uBlock Origin / ReVanced required daily/2026-04-23.md 2026-04-23
wiki/concepts/adguard-blocklist-setup AdGuard Home blocklist upgrade: default 1 list → 5 lists (AdAway, HaGeZi Multi Pro++, OISD Big, HaGeZi TIF); ~2.2M domains daily/2026-04-23.md 2026-04-23
wiki/concepts/claude-code-schedule-skill-account-type /schedule skill requires claude.ai login account — API-only users need launchd/cron as fallback daily/2026-04-24.md 2026-04-24
wiki/concepts/memory-compiler-mac-migration Migrating memory-compiler between Mac users — PROJECTS_ROOT, Python version, Fisher conf.d, cc-collector hyphen bug daily/2026-04-24.md 2026-04-25
wiki/concepts/immich-lxc-ram-oom Immich in LXC needs 8 GB RAM — 6 GB causes OOM; OOMPolicy=continue + MemoryMax=7G for auto-recovery daily/2026-04-24.md 2026-04-24
wiki/concepts/systemd-memory-oom-policy systemd MemoryMax + OOMPolicy=continue + RestartSec pattern for auto-recovery of memory-constrained services daily/2026-04-24.md 2026-04-24
wiki/concepts/proxmox-lxc-autostart LXC containers don't start after PVE reboot unless "Start at boot" (--onboot 1) is explicitly enabled daily/2026-04-24.md 2026-04-24
wiki/concepts/fish-fisher-conf-d-conflict Fisher plugin manager conflict when conf.d/ files are manually copied — delete and run fisher update to reinstall cleanly daily/2026-04-22.md 2026-04-22
wiki/concepts/macos-python-version-hooks macOS system /usr/bin/python3 = 3.9; Path|None syntax requires 3.10+; Claude Code hooks must use /opt/homebrew/bin/python3 daily/2026-04-22.md 2026-04-22
wiki/concepts/preflight-record-pattern preflight(estimate) → AI call → record(actual) — the 3-step AI cost-tracking pattern with budget enforcement ai-cost-tracker 2026-04-27
wiki/concepts/lazy-user-mirror User mirror created on first AI event, not on user creation — minimal integration surface, source project stays owner ai-cost-tracker 2026-04-27
wiki/concepts/sync-with-outbox Sync HTTP + SQLite outbox: record() never blocks the AI pipeline; background flusher retries up to 10x ai-cost-tracker 2026-04-27
wiki/concepts/litellm-pricing-source LiteLLM model_prices JSON as auto-updating LLM price source — why scraping provider sites is fragile ai-cost-tracker 2026-04-27
wiki/concepts/authentik-homelab-tradeoffs Authentik v2026.2.2 migration failure 0056, ~500MB RAM overhead, NPM auth_request removal — when to keep vs remove daily/2026-04-27.md 2026-04-27
wiki/concepts/icloud-git-sync-conflict iCloud creates main 2 files in .git/refs/heads/ on sync conflict — causes badRefName; fix and prevention daily/2026-04-27.md 2026-04-27
wiki/concepts/homarr-sqlite-integration-cleanup Homarr upgrade removes widget kinds but leaves stale SQLite rows — crashes integrations page with TypeError daily/2026-04-28.md 2026-04-28
wiki/concepts/docker-lxc-dns-configuration Docker containers in LXC/Proxmox use router DNS by default — need explicit AdGuard DNS in compose for internal domains daily/2026-04-28.md 2026-04-28
wiki/concepts/mac-address-randomization-dhcp Apple MAC randomization creates multiple DHCP leases per device — exhausts pool, causes IP conflicts; disable per-network daily/2026-04-28.md 2026-04-28
wiki/concepts/prowlarr-flaresolverr-limitation Prowlarr bypasses FlareSolverr for some indexers (RuTracker); VPN alternatives: SOCKS5, WireGuard in LXC, router VPN daily/2026-04-28.md 2026-04-28
wiki/concepts/bash-and-or-short-circuit Bash A && B || C is not if/else — if B fails, C runs even when A was true; deploy scripts must use if/fi daily/2026-04-24.md 2026-04-24
wiki/concepts/python-iso-z-suffix Python < 3.11 fromisoformat() rejects Z suffix from JS toISOString() — replace Z with +00:00 before parsing daily/2026-04-24.md 2026-04-24
wiki/concepts/gemini-conversation-cost-scaling Gemini bills full accumulated conversation history per turn — cost grows quadratically; backfill scripts must account for this daily/2026-04-24.md 2026-04-24

| wiki/concepts/asyncio-contextvar-task-boundary | Python ContextVar is NOT propagated through asyncio.wait_for / create_task — pass user_id as explicit parameter | daily/2026-04-27.md | 2026-04-27 | | wiki/concepts/pydantic-v2-alias-id-gotcha | Pydantic v2 Field(alias="_id") serializes JSON key as "_id" not "id" — frontend .id is undefined; fix with _from_doc() helper | daily/2026-04-27.md | 2026-04-27 | | wiki/concepts/php-display-errors-json-leak | PHP display_errors=1 prepends HTML warnings to JSON — "Unexpected token '<'" is the diagnostic signal; ini_set order matters | daily/2026-04-27.md | 2026-04-27 |

| wiki/concepts/jellyfin-tmdb-thetvdb-plugin | TMDb plugin silently fails to load images when API date format changes — switch to TheTVDB; Jellyfin S01E01 naming; Prowlarr search-only role | daily/2026-04-28.md | 2026-04-28 | | wiki/concepts/azure-ad-yaml-allowlist-pattern | AuthN via Azure AD (MSAL PKCE), AuthZ via local YAML allowlist — when to use, SPA redirect URI type, Docker volume for config dir, PyYAML requirement | daily/2026-04-28.md | 2026-04-28 | | wiki/concepts/zustand-async-hydration | Zustand persist hydrates localStorage asynchronously — components must gate API calls behind hasHydrated or token will be null on first render | daily/2026-04-28.md | 2026-04-28 | | wiki/concepts/pydantic-model-dict-interface | Pydantic model passed where dict expected — .get() returns None silently instead of raising; use isinstance check or model_dump() at boundary | daily/2026-04-28.md | 2026-04-28 |