# Requirements

Check the supported seller path, invitation and machine requirements before installing.

Source: https://docs.gyblos.com/en/getting-started/beta

This handbook follows the official installer, `https://gyblos.com/install.sh`, which pins one signed
release of the `ghcr.io/gyblos/seller` image by version and digest. Include `docker compose images seller`
when asking for help so the team can identify your installed image.

## Scope

| Task                          | Scope of this handbook                                                                                       |
| ----------------------------- | ------------------------------------------------------------------------------------------------------------ |
| Install and operate a seller  | Docker with local Ollama and pinned Qwen3 0.6B, reasoning off                                                |
| Offer free inference          | Daily total and per-buyer token caps; counters are in memory                                                 |
| Register and publish          | Invitation and devnet enrollment; interactive registration can create missing enrollment after cost approval |
| Use other engine plugins      | Advanced configuration; schema acceptance does not establish model validation                                |
| Set up paid offers or mainnet | Outside this onboarding; mainnet configuration is refused                                                    |

If enrollment is missing, the seller owner wallet needs devnet SOL for registration. The command
estimates its cost and asks for approval; see [Register and publish](/en/sellers/register-publish).

The beta uses Solana **devnet**. The default free offer moves no real money. Your electricity,
hosting and internet still have a cost; a remote engine may also charge you even for a free offer.

## Before you start

- An invitation containing a private **relay token** and a one-use **invite code** starting with `gyb_`.
- Linux x86-64 or ARM64, or macOS, on a machine that stays on. This installer is not a Windows-native procedure.
- Docker Engine with Compose on Linux, or Docker Desktop on macOS. Compose must be **v2.17 or later**.
- At least **4 GB of memory** and a few GB of free disk. Seller startup requires **1.5 GiB of headroom** above the seller process; Ollama needs memory too.
- Outbound internet access. The supplied Compose setup publishes no listening ports and uses outbound relay connections.

Treat Docker access as privileged. On Linux use an account already authorized to run Docker;
do not change host permissions merely to bypass an installation error.

## What checks prove

`doctor` checks startup prerequisites and probes supported dependencies. It does not generate an answer.
`RUNNING` confirms the service state; registration grants permission to publish; `listed in the index`
confirms an index lookup. None of these alone proves that an external buyer completed inference.

Prompts are processed by the engine you configure. A local seller can read them; a remote provider also
receives them. Relay use does not guarantee IP anonymity. Signed records do not independently prove
which model answered or whether its answer is correct.

**Next:** [Install your first seller](/en/sellers/beta-guide).