My AI Agent Using n8n---Env setup

Post at — May 10, 2026
#auto_work #news_analysis

how to use ai to analysis news auto?

Environment Setup

from the guide:https://github.com/n8n-io/n8n/blob/master/CONTRIBUTING.md, we known that the requirements need node and pnpm,if the computer has not installed the software,just like below,we need install first:

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tanwubin@MacBookForTan ~ % node -v
zsh: command not found: node
tanwubin@MacBookForTan ~ % pnpm -v
zsh: command not found: pnpm

so,first let’s install the node and pnpm:

node install:

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# install nvm to install node
# install nvm:node version manage
# ref:https://github.com/nvm-sh/nvm
tanwubin@MacBookForTan ~ % curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | bash
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 16774  100 16774    0     0  25921      0 --:--:-- --:--:-- --:--:-- 25885
=> Downloading nvm from git to '/Users/tanwubin/.nvm'
=> Cloning into '/Users/tanwubin/.nvm'...
remote: Enumerating objects: 427, done.
remote: Counting objects: 100% (427/427), done.
remote: Compressing objects: 100% (353/353), done.
remote: Total 427 (delta 60), reused 191 (delta 46), pack-reused 0 (from 0)
Receiving objects: 100% (427/427), 414.94 KiB | 1016.00 KiB/s, done.
Resolving deltas: 100% (60/60), done.
* (HEAD detached at FETCH_HEAD)
  master
=> Compressing and cleaning up git repository

=> Appending nvm source string to /Users/tanwubin/.zshrc
=> Appending bash_completion source string to /Users/tanwubin/.zshrc
=> Close and reopen your terminal to start using nvm or run the following to use it now:

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
tanwubin@MacBookForTan ~ % 
# restart the terminal
tanwubin@MacBookForTan ~ % nvm --version
0.40.4
tanwubin@MacBookForTan ~ % nvm install 24
Downloading and installing node v24.15.0...
Downloading https://nodejs.org/dist/v24.15.0/node-v24.15.0-darwin-arm64.tar.xz...
################################################################################################################# 100.0%
Computing checksum with sha256sum
Checksums matched!
Now using node v24.15.0 (npm v11.12.1)
Creating default alias: default -> 24 (-> v24.15.0 *)
tanwubin@MacBookForTan ~ % 
# .nvm dir is the source code of nvm store
tanwubin@MacBookForTan ~ % ls .nvm 
AGENTS.md		CONTRIBUTING.md		Makefile		README.md		versions
alias			Dockerfile		nvm-exec		rename_test.sh
bash_completion		GOVERNANCE.md		nvm.sh			ROADMAP.md
CLAUDE.md		install.sh		package.json		test
CODE_OF_CONDUCT.md	LICENSE.md		PROJECT_CHARTER.md	update_test_mocks.sh
tanwubin@MacBookForTan ~ % 
# .nvm/versions is the node that download with `nvm install`
tanwubin@MacBookForTan ~ % ls .nvm/versions 
node
tanwubin@MacBookForTan ~ % ls .nvm/versions/node/         
v24.15.0
tanwubin@MacBookForTan ~ % 
# by the way, the npm also install with node,and store in the node dir
tanwubin@MacBookForTan ~ % ls .nvm/versions/node/v24.15.0/bin/
corepack	node		npm		npx
tanwubin@MacBookForTan ~ % 
tanwubin@MacBookForTan ~ % which node
/Users/tanwubin/.nvm/versions/node/v24.15.0/bin/node
tanwubin@MacBookForTan ~ % which npm
/Users/tanwubin/.nvm/versions/node/v24.15.0/bin/npm
tanwubin@MacBookForTan ~ % 
# if use `npm install -g xx`,will install package to the follow dir:
tanwubin@MacBookForTan ~ % ls .nvm/versions/node/v24.15.0/lib/node_modules/
corepack/  npm/

pnpm install:

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tanwubin@MacBookForTan ~ % ls .nvm/versions/node/v24.15.0/bin 
corepack	node		npm		npx
tanwubin@MacBookForTan ~ % 
# when we enable corepack,in the node directory bin will create the proxy script of pnpm and some other script
tanwubin@MacBookForTan ~ % corepack enable
tanwubin@MacBookForTan ~ % ls .nvm/versions/node/v24.15.0/bin
corepack	npm		pnpm		yarn
node		npx		pnpx		yarnpkg
tanwubin@MacBookForTan ~ % 
tanwubin@MacBookForTan ~ % ls -l .nvm/versions/node/v24.15.0/bin 
total 234272
lrwxr-xr-x  1 tanwubin  staff         45  4月 15 09:45 corepack -> ../lib/node_modules/corepack/dist/corepack.js
-rwxr-xr-x  1 tanwubin  staff  119944608  4月 15 09:45 node
lrwxr-xr-x  1 tanwubin  staff         38  4月 15 09:45 npm -> ../lib/node_modules/npm/bin/npm-cli.js
lrwxr-xr-x  1 tanwubin  staff         38  4月 15 09:45 npx -> ../lib/node_modules/npm/bin/npx-cli.js
lrwxr-xr-x  1 tanwubin  staff         41  5月 10 15:29 pnpm -> ../lib/node_modules/corepack/dist/pnpm.js
lrwxr-xr-x  1 tanwubin  staff         41  5月 10 15:29 pnpx -> ../lib/node_modules/corepack/dist/pnpx.js
lrwxr-xr-x  1 tanwubin  staff         41  5月 10 15:29 yarn -> ../lib/node_modules/corepack/dist/yarn.js
lrwxr-xr-x  1 tanwubin  staff         44  5月 10 15:29 yarnpkg -> ../lib/node_modules/corepack/dist/yarnpkg.js
tanwubin@MacBookForTan ~ %
# install the pnpm by the corepack
tanwubin@MacBookForTan ~ % corepack prepare pnpm@10.22.0 --activate
Preparing pnpm@10.22.0 for immediate activation...
tanwubin@MacBookForTan ~ % 
# after install by the corepack,in the .cache dir will apear the real pnpm script
tanwubin@MacBookForTan ~ % ls .cache/node/corepack/v1                
pnpm
tanwubin@MacBookForTan ~ % ls .cache/node/corepack/v1/pnpm 
10.22.0
tanwubin@MacBookForTan ~ % 
tanwubin@MacBookForTan ~ % pnpm -v
10.22.0
# later if we install package by pnpm,the package will store here
tanwubin@MacBookForTan ~ % pnpm store path
/Users/tanwubin/Library/pnpm/store/v10
tanwubin@MacBookForTan ~ % 
# later we need generate video,so need download ffmpeg
tanwubin@MacBookForTan md2video % brew install ffmpeg
==> Auto-updating Homebrew...
Adjust how often this is run with `$HOMEBREW_AUTO_UPDATE_SECS` or disable with
`$HOMEBREW_NO_AUTO_UPDATE=1`. Hide these hints with `$HOMEBREW_NO_ENV_HINTS=1` (see `man brew`).
==> Auto-updated Homebrew!
Updated 1 tap (homebrew/core).
==> New Formulae
hexapoda: Colorful modal hex editor
nettle@3: Low-level cryptographic library

==> Fetching downloads for: ffmpeg
✔︎ Bottle Manifest ffmpeg (8.1.1)                                                             Downloaded   38.8KB/ 38.8KB
✔︎ Bottle Manifest dav1d (1.5.3)                                                              Downloaded    7.6KB/  7.6KB
✔︎ Bottle Manifest libvmaf (3.1.0)                                                            Downloaded    7.7KB/  7.7KB
✔︎ Bottle Manifest libvpx (1.16.0)                                                            Downloaded    7.3KB/  7.3KB
✔︎ Bottle Manifest openssl@3 (3.6.2)                                                          Downloaded   12.0KB/ 12.0KB
✔︎ Bottle Manifest opus (1.6.1)                                                               Downloaded    7.3KB/  7.3KB
✔︎ Bottle Manifest x264 (r3222)                                                               Downloaded    9.8KB/  9.8KB
✔︎ Bottle Manifest svt-av1 (4.1.0)                                                            Downloaded    7.6KB/  7.6KB
✔︎ Bottle Manifest lame (3.100)                                                               Downloaded   16.1KB/ 16.1KB
✔︎ Bottle Manifest sdl2 (2.32.10)                                                             Downloaded   23.0KB/ 23.0KB
✔︎ Bottle Manifest ca-certificates (2026-03-19)                                               Downloaded    2.0KB/  2.0KB
✔︎ Bottle ca-certificates (2026-03-19)                                                        Downloaded  132.4KB/132.4KB
✔︎ Bottle Manifest x265 (4.2)                                                                 Downloaded    7.6KB/  7.6KB
✔︎ Bottle svt-av1 (4.1.0)                                                                     Downloaded    1.3MB/  1.3MB
✔︎ Bottle lame (3.100)                                                                        Downloaded  792.0KB/792.0KB
✔︎ Bottle opus (1.6.1)                                                                        Downloaded  505.2KB/505.2KB
✔︎ Bottle libvmaf (3.1.0)                                                                     Downloaded    1.1MB/  1.1MB
✔︎ Bottle dav1d (1.5.3)                                                                       Downloaded  364.6KB/364.6KB
✔︎ Bottle libvpx (1.16.0)                                                                     Downloaded    1.9MB/  1.9MB
✔︎ Bottle x264 (r3222)                                                                        Downloaded    2.0MB/  2.0MB
✔︎ Bottle sdl2 (2.32.10)                                                                      Downloaded    1.8MB/  1.8MB
✔︎ Bottle x265 (4.2)                                                                          Downloaded    5.1MB/  5.1MB
✔︎ Bottle openssl@3 (3.6.2)                                                                   Downloaded   10.9MB/ 10.9MB
✔︎ Bottle ffmpeg (8.1.1)                                                                      Downloaded   21.2MB/ 21.2MB
==> Installing dependencies for ffmpeg: dav1d, lame, libvmaf, libvpx, ca-certificates, openssl@3, opus, sdl2, svt-av1, x264 and x265
==> Installing ffmpeg dependency: dav1d
==> Pouring dav1d--1.5.3.arm64_tahoe.bottle.tar.gz
🍺  /opt/homebrew/Cellar/dav1d/1.5.3: 16 files, 940KB
==> Installing ffmpeg dependency: lame
==> Pouring lame--3.100.arm64_tahoe.bottle.tar.gz
🍺  /opt/homebrew/Cellar/lame/3.100: 28 files, 2.3MB
==> Installing ffmpeg dependency: libvmaf
==> Pouring libvmaf--3.1.0.arm64_tahoe.bottle.tar.gz
🍺  /opt/homebrew/Cellar/libvmaf/3.1.0: 235 files, 7.5MB
==> Installing ffmpeg dependency: libvpx
==> Pouring libvpx--1.16.0.arm64_tahoe.bottle.tar.gz
🍺  /opt/homebrew/Cellar/libvpx/1.16.0: 22 files, 4.4MB
==> Installing ffmpeg dependency: ca-certificates
==> Pouring ca-certificates--2026-03-19.all.bottle.tar.gz
==> Regenerating CA certificate bundle from keychain, this may take a while...
🍺  /opt/homebrew/Cellar/ca-certificates/2026-03-19: 4 files, 237.5KB
==> Installing ffmpeg dependency: openssl@3
==> Pouring openssl@3--3.6.2.arm64_tahoe.bottle.tar.gz
🍺  /opt/homebrew/Cellar/openssl@3/3.6.2: 7,627 files, 37.6MB
==> Installing ffmpeg dependency: opus
==> Pouring opus--1.6.1.arm64_tahoe.bottle.tar.gz
🍺  /opt/homebrew/Cellar/opus/1.6.1: 16 files, 1.1MB
==> Installing ffmpeg dependency: sdl2
==> Pouring sdl2--2.32.10.arm64_tahoe.bottle.tar.gz
🍺  /opt/homebrew/Cellar/sdl2/2.32.10: 94 files, 6.7MB
==> Installing ffmpeg dependency: svt-av1
==> Pouring svt-av1--4.1.0.arm64_tahoe.bottle.tar.gz
🍺  /opt/homebrew/Cellar/svt-av1/4.1.0: 23 files, 3.1MB
==> Installing ffmpeg dependency: x264
==> Pouring x264--r3222.arm64_tahoe.bottle.tar.gz
🍺  /opt/homebrew/Cellar/x264/r3222: 12 files, 4.4MB
==> Installing ffmpeg dependency: x265
==> Pouring x265--4.2.arm64_tahoe.bottle.tar.gz
🍺  /opt/homebrew/Cellar/x265/4.2: 12 files, 17.0MB
==> Installing ffmpeg
==> Pouring ffmpeg--8.1.1.arm64_tahoe.bottle.tar.gz
==> Caveats
ffmpeg-full includes additional tools and libraries that are not included in the regular ffmpeg formula.
==> Summary
🍺  /opt/homebrew/Cellar/ffmpeg/8.1.1: 287 files, 53.5MB
==> Running `brew cleanup ffmpeg`...
Disable this behaviour by setting `HOMEBREW_NO_INSTALL_CLEANUP=1`.
Hide these hints with `HOMEBREW_NO_ENV_HINTS=1` (see `man brew`).
==> Caveats
==> ffmpeg
ffmpeg-full includes additional tools and libraries that are not included in the regular ffmpeg formula.
tanwubin@MacBookForTan md2video % 
tanwubin@MacBookForTan md2video % ffmpeg -version
ffmpeg version 8.1.1 Copyright (c) 2000-2026 the FFmpeg developers
built with Apple clang version 21.0.0 (clang-2100.0.123.102)
configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/8.1.1 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gpl --enable-libsvtav1 --enable-libopus --enable-libx264 --enable-libmp3lame --enable-libdav1d --enable-libvmaf --enable-libvpx --enable-libx265 --enable-openssl --enable-videotoolbox --enable-audiotoolbox --enable-neon
libavutil      60. 26.101 / 60. 26.101
libavcodec     62. 28.101 / 62. 28.101
libavformat    62. 12.101 / 62. 12.101
libavdevice    62.  3.101 / 62.  3.101
libavfilter    11. 14.101 / 11. 14.101
libswscale      9.  5.101 /  9.  5.101
libswresample   6.  3.101 /  6.  3.101

Exiting with exit code 0
tanwubin@MacBookForTan md2video % 
# we need python, so first down uv to manage python
tanwubin@MacBookForTan md2video % brew install uv
✔︎ JSON API formula.jws.json                                                                  Downloaded   32.0MB/ 32.0MB
✔︎ JSON API cask.jws.json                                                                     Downloaded   15.4MB/ 15.4MB
==> Fetching downloads for: uv
✔︎ Bottle Manifest uv (0.11.13)                                                               Downloaded    8.1KB/  8.1KB
✔︎ Bottle uv (0.11.13)                                                                        Downloaded   20.4MB/ 20.4MB
==> Pouring uv--0.11.13.arm64_tahoe.bottle.tar.gz
==> Caveats
The following uv executables are shadowed by other commands earlier in your PATH:
  uv (shadowed by /Users/tanwubin/.local/bin/uv)
  uvx (shadowed by /Users/tanwubin/.local/bin/uvx)
Running these by name will not invoke the version provided by Homebrew.
Disable this behaviour by setting `HOMEBREW_NO_PATH_SHADOW_CHECK=1`.
Hide these hints with `HOMEBREW_NO_ENV_HINTS=1` (see `man brew`).
==> Summary
🍺  /opt/homebrew/Cellar/uv/0.11.13: 17 files, 48.8MB
==> Running `brew cleanup uv`...
Disable this behaviour by setting `HOMEBREW_NO_INSTALL_CLEANUP=1`.
Hide these hints with `HOMEBREW_NO_ENV_HINTS=1` (see `man brew`).
==> Caveats
zsh completions have been installed to:
  /opt/homebrew/share/zsh/site-functions
tanwubin@MacBookForTan md2video % uv python install 3.12
Installed Python 3.12.13 in 1m 38s
 + cpython-3.12.13-macos-aarch64-none (python3.12)
tanwubin@MacBookForTan md2video % uv python list
cpython-3.15.0a8-macos-aarch64-none                 <download available>
cpython-3.15.0a8+freethreaded-macos-aarch64-none    <download available>
cpython-3.14.4-macos-aarch64-none                   <download available>
cpython-3.14.4+freethreaded-macos-aarch64-none      <download available>
cpython-3.13.13-macos-aarch64-none                  <download available>
cpython-3.13.13+freethreaded-macos-aarch64-none     <download available>
cpython-3.12.13-macos-aarch64-none                  /Users/tanwubin/.local/bin/python3.12 -> /Users/tanwubin/.local/share/uv/python/cpython-3.12-macos-aarch64-none/bin/python3.12
cpython-3.12.13-macos-aarch64-none                  /Users/tanwubin/.local/share/uv/python/cpython-3.12-macos-aarch64-none/bin/python3.12
cpython-3.11.15-macos-aarch64-none                  <download available>
cpython-3.10.20-macos-aarch64-none                  <download available>
cpython-3.9.25-macos-aarch64-none                   <download available>
cpython-3.9.6-macos-aarch64-none                    /usr/bin/python3
cpython-3.8.20-macos-aarch64-none                   <download available>
pypy-3.11.15-macos-aarch64-none                     <download available>
pypy-3.10.16-macos-aarch64-none                     <download available>
pypy-3.9.19-macos-aarch64-none                      <download available>
pypy-3.8.16-macos-aarch64-none                      <download available>
graalpy-3.12.0-macos-aarch64-none                   <download available>
graalpy-3.11.0-macos-aarch64-none                   <download available>
graalpy-3.10.0-macos-aarch64-none                   <download available>
graalpy-3.8.5-macos-aarch64-none                    <download available>
tanwubin@MacBookForTan md2video % uv python find
/Users/tanwubin/.local/share/uv/python/cpython-3.12-macos-aarch64-none/bin/python3.12
# system default python
tanwubin@MacBookForTan md2video % python3 --version
Python 3.9.6
# uv download python
tanwubin@MacBookForTan md2video % python3.12 --version
Python 3.12.13
# based on uv to create a venv for project
tanwubin@MacBookForTan md2video % uv venv --python 3.12
Using CPython 3.12.13
Creating virtual environment at: .venv
Activate with: source .venv/bin/activate
tanwubin@MacBookForTan md2video % 
# active and install requirements
tanwubin@MacBookForTan md2video % source .venv/bin/activate
(md2video) tanwubin@MacBookForTan md2video % 
(md2video) tanwubin@MacBookForTan md2video % 
(md2video) tanwubin@MacBookForTan md2video % 
(md2video) tanwubin@MacBookForTan md2video % uv pip install -r requirements.txt 
Resolved 45 packages in 4.40s
Prepared 45 packages in 35.40s
Installed 45 packages in 54ms
 + annotated-types==0.7.0
 + anyio==4.13.0
 + attrs==26.1.0
 + beautifulsoup4==4.14.3
 + certifi==2026.4.22
 + charset-normalizer==3.4.7
 + decorator==5.2.1
 + distro==1.9.0
 + h11==0.16.0
 + httpcore==1.0.9
 + httpx==0.28.1
 + idna==3.15
 + imageio==2.37.3
 + imageio-ffmpeg==0.6.0
 + jiter==0.14.0
 + markdown==3.10.2
 + markdown2==2.5.5
 + moviepy==2.2.1
 + numpy==2.4.5
 + openai==2.37.0
 + outcome==1.3.0.post0
 + packaging==26.2
 + pathlib==1.0.1
 + pillow==11.3.0
 + proglog==0.1.12
 + pydantic==2.13.4
 + pydantic-core==2.46.4
 + pydub==0.25.1
 + pysocks==1.7.1
 + python-dotenv==1.2.2
 + pyyaml==6.0.3
 + requests==2.34.2
 + selenium==4.44.0
 + sniffio==1.3.1
 + sortedcontainers==2.4.0
 + soupsieve==2.8.3
 + tqdm==4.67.3
 + trio==0.33.0
 + trio-websocket==0.12.2
 + typing-extensions==4.15.0
 + typing-inspection==0.4.2
 + urllib3==2.7.0
 + webdriver-manager==4.0.2
 + websocket-client==1.9.0
 + wsproto==1.3.2
(md2video) tanwubin@MacBookForTan md2video %

After the operation,we prepared the node and pnpm that satisfy the n8n project.

n8n install build and start

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# git clone
tanwubin@MacBookForTan Projects % git clone https://github.com/tanwubin/n8n.git
Cloning into 'n8n'...
remote: Enumerating objects: 505878, done.
remote: Counting objects: 100% (39/39), done.
remote: Compressing objects: 100% (36/36), done.
remote: Total 505878 (delta 8), reused 3 (delta 3), pack-reused 505839 (from 3)
Receiving objects: 100% (505878/505878), 344.89 MiB | 213.00 KiB/s, done.
Resolving deltas: 100% (379521/379521), done.
Updating files: 100% (18494/18494), done.
tanwubin@MacBookForTan Projects % 
tanwubin@MacBookForTan Projects % cd n8n
tanwubin@MacBookForTan n8n % git fetch --tags
tanwubin@MacBookForTan n8n % git tag -l n8n@1.80.3
n8n@1.80.3
tanwubin@MacBookForTan n8n % 
tanwubin@MacBookForTan n8n % git branch
* master
tanwubin@MacBookForTan n8n % git checkout -b n8n@1.80.3
Switched to a new branch 'n8n@1.80.3'
tanwubin@MacBookForTan n8n % git branch
  master
* n8n@1.80.3
tanwubin@MacBookForTan n8n % 
# Install all dependencies of all modules and link them together
# becaude the package.json define the packageManager is pnpm@10.32.1,so here will install pnpm another version
# "packageManager": "pnpm@10.32.1",
tanwubin@MacBookForTan n8n % pnpm install
! Corepack is about to download https://registry.npmjs.org/pnpm/-/pnpm-10.32.1.tgz
? Do you want to continue? [Y/n] Y

 WARN  Tarball download average speed 32 KiB/s (size 33 KiB) is below 50 KiB/s: https://registry.npmjs.org/@parcel/watcher/-/watcher-2.5.1.tgz (GET)
 WARN  Tarball download average speed 12 KiB/s (size 26 KiB) is below 50 KiB/s: https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.21.tgz (GET)
 WARN  Tarball download average speed 44 KiB/s (size 157 KiB) is below 50 KiB/s: https://registry.npmjs.org/pngjs/-/pngjs-7.0.0.tgz (GET)
 WARN  Tarball download average speed 37 KiB/s (size 45 KiB) is below 50 KiB/s: https://registry.npmjs.org/cjs-module-lexer/-/cjs-module-lexer-2.2.0.tgz (GET)
 WARN  Tarball download average speed 20 KiB/s (size 22 KiB) is below 50 KiB/s: https://registry.npmjs.org/@types/luxon/-/luxon-3.2.0.tgz (GET)
 WARN  44 other warnings
tanwubin@MacBookForTan n8n % 
# we can see that there exists two pnpm versions
tanwubin@MacBookForTan n8n % ls ~/.cache/node/corepack/v1/pnpm 
10.22.0	10.32.1
# begin build
tanwubin@MacBookForTan n8n % pnpm build

> n8n-monorepo@2.20.0 build /Users/tanwubin/Projects/n8n
> turbo run build
......
 Tasks:    59 successful, 59 total
Cached:    0 cached, 59 total
  Time:    1m22.892s 

>   ...Finishing writing to cache...                                                                                     WARNING  no output files found for task @n8n/local-gateway#build. Please check your `outputs` key in `turbo.json`
tanwubin@MacBookForTan n8n %
# To start n8n execute
pnpm start

btw:when start, occur an error:

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Your n8n server is configured to use a secure cookie,
however you are either visiting this via an insecure URL, or using Safari.


To fix this, please consider the following options:
Setup TLS/HTTPS (recommended), or
If you are running this locally, and not using Safari, try using localhost instead
If you prefer to disable this security feature (not recommended), set the environment variable N8N_SECURE_COOKIE to false

# fix the error
export N8N_SECURE_COOKIE=false
pnpm start

After start success, just exploring the n8n world…