14 modules. Local-first. Pick what you need, ignore the rest. One appliance, one bill, no subscription tax on hardware you already own.
Prices range from $5/mo (Vault only) to $49/mo (POS + CRM). Annual: 2 months free. Cancel anytime, no penalty.
| What you get | Nexum | Home Assistant DIY | SaaS bundles (Shopify+Quickbooks+...) |
|---|---|---|---|
| Local-first (no cloud required) | Yes | Yes | No |
| Turnkey hardware | Yes | DIY | Optional |
| POS + CRM included | Yes | Plugin only | Yes (separate sub) |
| Smart-home modules | Yes | Yes | No |
| Works when internet is down | Yes | Yes | No |
| Subscription floor | $5/mo (Vault only) | $0 (open source) | $80–200/mo |
| Setup time | 10 min | Hours | Days |
| Vendor lock-in | None | None | Hard |
Nexum runs on any 64-bit Linux mini PC. We recommend a Beelink S12 Pro (~$200) or Mac mini M4 for power users. If you'd rather we ship pre-imaged hardware, we offer turnkey appliances starting at $449 one-time. Ask about the hardware option.
Yes — pricing is à la carte. Add a module mid-cycle and you're prorated. Drop one and it stops billing next cycle. Your data stays on the appliance.
The business keeps running. POS, accounting, smart home, security, finance, vault — all local. Email + news + cloud AI gracefully degrade to cached data and queue any sync work. A yellow banner appears in the UI so you know you're offline; everything auto-syncs when you're back.
No. Cancel any time, no penalty. Your data stays on your appliance — we can't lock you out because we never had your data. Export your databases any time as JSON or SQL.
We offer a 7-day free trial on any module combination. No card required for the trial. If you don't continue, your activation lapses and the appliance shows a "license expired" notice — no remote wipe, no surprise behavior.
Home Assistant is a brilliant open-source smart-home automation hub. Nexum is broader — it also handles your business (POS+CRM+accounting) and personal (finance+vault+email AI) on the same appliance. If you only need smart-home and you're comfortable with Linux, Home Assistant is the right pick. If you want one appliance for your home + business + finances + you don't want to learn Linux to use it, that's where we come in. Longer comparison post here.
On your hardware. We can't see it. We can't sell it. We can't lose it (you have backups; we don't). Your activation code phones home every 24 hours; that's the only outbound traffic Nexum is required to make.
Yes. Any 64-bit Linux box with 4GB+ RAM works. Ubuntu 22.04 or 24.04 recommended. You run our installer (one command), enter your activation code, and you're up.
Currently by direct invoice while we finalize our Stripe integration (Q3 2026). Pick your modules above, click Continue, and we'll send you a secure payment link within one business day. Card, ACH, or wire — your choice.