Herald OS is a free, open-source operating system with Hermes Agent as the interface, and my verdict is 4 out of 5 for anyone who wants a beautiful front end for Hermes.
It's built by an independent developer called Luke The Dev, it's MIT-licensed, and it's an early alpha.
I tested every page on camera, from the dashboard to the voice settings.
In this review, I explain what Herald OS is, score every feature out of 10, and tell you exactly what didn't work.
If you just want the answer, it's the nicest Hermes interface I've used, but it isn't finished yet.
The Herald OS Verdict In 30 Seconds
| Category | Verdict |
|---|---|
| Overall | I rate it 4 out of 5. |
| Best for | It's best for Hermes users who want a beautiful UI and don't like Hermes Desktop. |
| Not for | It's not for anyone who needs every connection working perfectly today. |
| Price | Herald OS is free, and you only pay for your model unless you pick a free one. |
| Biggest strength | Its dashboard, spaces and synced automations make Hermes feel like an operating system. |
| Biggest weakness | Connections didn't work for me, and it has alpha rough edges. |
What Is Herald OS?
The GitHub repo describes Herald OS as "an agent-native operating system, with Hermes Agent as the interface".
Instead of clicking through folders and menus, you talk or type to Hermes, and it works across the machine.
It can open apps, organise files, remember what matters, run routines on a schedule and build software while you watch.
Anything that changes something goes through a permission system you control.
Herald OS doesn't fork Hermes, because it runs a standard Hermes Agent install and adds its tools as a plugin called herald-os-bridge.
| Fact | Detail |
|---|---|
| Maker | Luke The Dev (iamlukethedev), who also made Hermes3D. |
| Affiliation | The README says it's independent and not affiliated with Nous Research. |
| Licence | It uses the MIT licence. |
| Status | It's labelled alpha (0.1), and the repo was created on 6 October 2026. |
| Platforms | It runs on Apple Silicon Macs (macOS 13+), as Herald OS Linux on a PC, on Arch and Omarchy, on other Linux via a tarball, and in a VM. |
| Model | It uses whatever your Hermes runs, such as Nous Portal, OpenRouter, OpenAI, Anthropic or a local model. |
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The Problem Herald OS Solves
When I started using Hermes around March and April 2026, it lived in the terminal.
That was messy, and it put a lot of people off.
Hermes Desktop improved things, but not everyone likes its look.
Herald OS gives you a full, personalised interface over the same Hermes, and I think it looks nicer than Hermes Desktop.
Herald OS Setup Reviewed
I had Claude install it for me, and it took about two minutes.
On a Mac you install Hermes Agent, run hermes setup, download the DMG from the releases page and drag it into Applications.
The build isn't notarized by Apple yet, so you run the xattr command from the README once before it will open.
It takes over the whole screen, so remember Cmd+Ctrl+F toggles fullscreen and Cmd+Q quits.
I'd score setup 7 out of 10, because it's quick for anyone comfortable with one terminal command, but the unnotarized build will confuse beginners.
The full install routes for every platform are in my Herald OS GitHub install guide.
Every Herald OS Feature, Scored Out Of 10
| Feature | What it does | My score | Why |
|---|---|---|---|
| Dashboard | It greets you ("Good morning, Julian. Your day already in motion."), shows today's schedule from scheduled tasks and a "needs attention" panel. | 9 | It's the best first screen I've seen on any Hermes interface. |
| Pick up where you left off | It reads names of recent documents, projects, chats and calendar events and suggests where to continue. | 9 | It's genuinely useful, and it's off until you turn it on. |
| Recent screenshots | It surfaces recent screenshots from your desktop. | 7 | It's a small touch that saves digging around. |
| Chat with Preview and Sources | It's a normal Hermes chat where you add sources and files for Hermes to read. | 8 | It does the basics well. |
| Voice input | You can talk to Hermes from the dashboard. | 8 | It works, and it's optional. |
| Spaces | It ships with Ideas, Work and Personal, and you can add spaces such as a client. | 9 | It answers the "separate companies" question cleanly. |
| Missions | You give Hermes an active goal, and it plans step by step. | 8 | It's the right shape for projects like a new website. |
| Memory | It shows everything Hermes remembers about you. | 7 | It's transparent, but it showed my Telegram details on screen. |
| Files | It has recent, favourites, projects, downloads, shared and deleted. | 8 | It's clean, and moves ask first. |
| Automations | You manage routines and switch them on or off. | 9 | They synced instantly with Hermes Desktop and my Agent OS. |
| Connections | It's meant to bring tools and external apps into one workspace. | 3 | It didn't connect or sync for me. |
| Settings depth | It covers model, runtimes, agents, approvals, appearance, software, plugins, usage, voice and system areas. | 9 | It's deeper than I expected from an alpha. |
| Polish | The sidebar is resizable, but the UI was cut off slightly at the top on my screen. | 6 | It shows its alpha status. |
That averages out at roughly 7.7 out of 10 across the features, which is why I land on 4 out of 5 overall.
The Dashboard And Spaces, Reviewed
The dashboard is where Herald OS wins you over in the first ten seconds.
You get your day, your schedule, what needs attention, and a chat box in one place.
"Pick up where you left off" is the standout, because it turns the agent into the thing that remembers your context for you.
The README says it puts up to three threads on the Overview and only starts a suggested step when you click it.
Spaces are the other big win.
Inside the AI Profit Boardroom, people constantly ask how to separate companies and clients in an agent OS.
Ideas, Work and Personal are built in, you can add your own, and you can set a default space.
Missions, Memory And Files, Reviewed
Missions turn a goal into a plan, a file preview and an activity timeline.
My test goal was "build out a new website", and the plan-first approach is exactly what I want from an agent.
Memory is honest about what Hermes knows, and you can search, add or forget items.
My one warning is that my Telegram details showed up on screen, so check it before you screen-share.
Files is a tidy file browser with search by name or description, and the FAQ says Herald OS never deletes permanently.
Automations: The Feature That Sold Me
You can manage every automation, switch it on or off, run it now and see recent runs.
I had a daily 6am to-do recap, a daily Japanese learning session, and inbox triage with a morning inbox summary.
What sold me was the sync.
My automations showed up across Herald OS, Hermes Desktop and my Agent OS, because all three share the same Hermes.
You don't lose anything by trying Herald OS, and you don't rebuild anything if you go back.
🔥 Want the automations I actually run on Hermes? Inside the AI Profit Boardroom, I share my Hermes automation blueprints, full Hermes trainings and the Agent OS, with four coaching calls a week and 3,400+ members. → Get access here
Connections: The Weakest Part
Connections is supposed to pull your tools, apps and external connections into Herald OS.
It didn't work or sync for me.
That's the honest reality of a two-day-old open-source alpha, and there'll be back-and-forth before it's fixed.
You can ask Claude to fix it, but I wouldn't rely on it yet.
Every Settings Area, Reviewed
| Settings area | What's in it | My take |
|---|---|---|
| Preferred model | You pick the model Hermes uses, and mine showed GPT-6 Astra through a CLI. | It's flexible, because any Hermes provider works. |
| Where agents run | You choose runtimes, including Docker. | It's a strong safety option for code jobs. |
| Background agents | You set how many run at once. | It's useful for heavier setups. |
| Remember preferences | You decide whether Hermes learns from your choices. | It's good to have the switch. |
| Auto-approve | You can turn "Ask before sending messages" on or off, with Ask first, Balanced and Independent levels. | I'd keep approvals on. |
| Activity history | You see background work you forgot about. | It's quietly one of the most useful pages. |
| General | It has launch fullscreen, default space, default and projects folders, do not disturb, stay awake, screensaver, dictation and quit session. | It covers everything you'd expect. |
| Colours and themes | You change the look, and the README lists twelve themes. | It's very personalisable. |
| Software access | You add or remove coding agents and local models, such as Claude Code, Codex and LM Studio. | It's handy for builders. |
| Plugins | You paste a GitHub link to add a plugin. | It's simple, but it's no marketplace. |
| Hermes Agent | You manage the Hermes side. | It's clear and direct. |
| Usage | You see tokens used, your plan and your token balance. | It's essential if you pay for a model. |
| Voice | You switch engine and speed, choose local or "live" voice, test it, and read the voice commands. | It's very Jarvis-like. |
| Privacy, notifications, network, storage, accessibility | You get the audit log and system controls. | They're solid basics. |
There's a bell notification sound, so I'd switch on do not disturb if you're on calls.
The repo docs say the free voice engine replies in about two seconds, and the optional Live engine costs $0.05 a minute on your own OpenAI key.
Herald OS vs Hermes Desktop
| Criterion | Herald OS | Hermes Desktop |
|---|---|---|
| Design | I'd give it 9, because it's a full, beautiful OS. | I'd give it 7, because it's a standard app window. |
| Stability | I'd give it 6, because it's an alpha. | I'd give it 8, because it's more settled. |
| Plugins | It adds plugins from a GitHub link. | It has a one-click marketplace with around 500 community plugins. |
| Shared Hermes | It uses the same Hermes, so automations sync. | It uses the same Hermes, so automations sync. |
| Verdict | It's the pick if you love a clean UI. | It's the pick if you want stability now. |
If plugins matter to you, read my Hermes Agent plugins marketplace review before you decide.
Safety And Limits Reviewed
Herald OS has a sensible permission model.
The README lists four tiers, where read and act tools run straight away, mutate tools ask first, and destructive tools ask every time.
Folders such as ~/.ssh, your keychains and Hermes's own credentials are always refused, and there's an audit log in Settings > Privacy.
These are the limits I'd weigh before you install it.
- It's an alpha, and the README tells you to keep backups of anything an agent touches.
- Connections didn't work for me.
- The Mac build isn't notarized, so only download it from the official releases page.
- Herald OS is free, but your model provider can still bill you.
- It needs an Apple Silicon Mac or a supported Linux setup, and Intel Macs are untested.
If cost is your main worry, my free Hermes Agent OS breakdown shows how to run it without paying for a model.
🔥 Want help choosing between Herald OS, Hermes Desktop and the Agent OS? Bring your setup to a coaching call inside the AI Profit Boardroom, where 3,400+ members and I test these tools every week. → Join the AI Profit Boardroom
Final Herald OS Verdict
Herald OS is super clean, it synced quickly with my existing Hermes setup, and it makes Hermes feel like a real operating system.
I give it 4 out of 5 today.
It loses a point for being an early alpha, for Connections not working, and for small UI rough edges.
If you want a beautiful UI for Hermes and you don't like Hermes Desktop, it's absolutely worth installing.
Related Reading
- My Hermes Agent plugins marketplace review covers the plugin side of Hermes Desktop.
- My Solar Mini 4 Hermes verdict covers a free model you can run under Herald OS.
Also On Our Network
- 🌐 The operator's Herald OS install and setup walkthrough
- 🌐 Nine business uses for Herald OS
- 🌐 Herald OS as part of an Agent OS workflow
- 🌐 The benchmarked models you can run Herald OS on
FAQ: Herald OS Review
Is Herald OS any good?
Yes, I rate it 4 out of 5.
It's the cleanest Hermes interface I've used and its automations synced instantly, but it's an early alpha and Connections didn't work for me.
What is Herald OS?
Herald OS is a free, open-source, agent-native operating system with Hermes Agent as the interface.
It's an independent project by Luke The Dev and isn't affiliated with Nous Research.
Is Herald OS better than Hermes Desktop?
It has the better design, with a dashboard, Spaces and Missions.
Hermes Desktop is more stable today and has a one-click plugin marketplace, and both share the same Hermes.
Is Herald OS free?
Herald OS is free and MIT-licensed.
Your model provider can still charge you unless you use a free model.
Is Herald OS safe?
It has permission tiers, an audit log and protected folders that are always refused.
It's still an alpha, so keep backups and keep approvals on.
What are the biggest Herald OS problems?
Connections didn't connect or sync for me, the UI was slightly cut off at the top of my screen, and the Mac build isn't notarized yet.
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About Julian
I'm Julian Goldie, an SEO entrepreneur, author and founder of the AI Profit Boardroom, which has 3,400+ members.
I help business owners scale with AI agents, automation and SEO.
- I've built a 7-figure agency, Goldie Agency, with a team of around 50 people.
- I've grown a YouTube channel to 400,000+ subscribers.
- I wrote the Amazon best-sellers "SEO Link Building Mastery" and "Agency Marketing Mastery".
- My Udemy courses have taught over 50,000 students.
→ Get my best AI training inside the AI Profit Boardroom
That's my full verdict, and if a clean Hermes interface matters to you, Herald OS is worth trying today.
