--- title: Install halc on CentOS using the Snap Store | Snapcraft description: Get the latest version of halc for on CentOS - Heuristic Agent Ledger by confrontation url: https://snapcraft.io/install/halc/centos --- [Canonical Snapcraft](https://snapcraft.io/) # Install halc on **CentOS** # halc [Cedric Gegout (cgegout)](https://snapcraft.io/publisher/cgegout "View all snaps from Cedric Gegout (cgegout)") * [Cedric Gegout (cgegout)](https://snapcraft.io/publisher/cgegout "View all snaps from Cedric Gegout (cgegout)") * [Development](https://snapcraft.io/search?categories=development) * [Utilities](https://snapcraft.io/search?categories=utilities) [Install](https://snapcraft.io/install/halc/centos#install) #### Heuristic Agent Ledger by confrontation **What is it?** HALc implements a *'constructive confrontation'* algorithm between multiple LLM agents. For each request, agents independently frame the problem, propose solutions, challenge competing views, provide evidence, steelman alternatives, and revise their positions. HALc then scores the proposals, selects a decision, and records unresolved dissent and reasoning in a ledger. The goal is to turn disagreement between agents into more robust, transparent, and evidence-driven decisions. **Motivation** Building robust architectures or solving complex problems using single LLM prompts often overlooks edge cases, security hazards, and operational risks. Constructive confrontation introduces a dialectic process where multiple distinct agent personas (e.g. architect, product, security) evaluate, challenge, and score each other's proposals. By aggregating these critiques and performing structured Copeland ranking, HALc filters out fragile concepts and presents the most robust solution as an OpenAI-compatible API response. ### Package name * halc --- ### License * MIT --- ### Last updated * 23 July 2026 - latest/stable * 9 July 2026 - latest/edge --- ### Websites * [github.com/gegout/HALc](https://github.com/gegout/HALc "https://github.com/gegout/HALc") * [github.com/gegout/HALc/blob/master/Heuristic%20Agent%20Ledger%20by%20confrontation/Heuristic%20Agent%20Ledger%20by%20confrontation.md](https://github.com/gegout/HALc/blob/master/Heuristic%20Agent%20Ledger%20by%20confrontation/Heuristic%20Agent%20Ledger%20by%20confrontation.md "https://github.com/gegout/HALc/blob/master/Heuristic%20Agent%20Ledger%20by%20confrontation/Heuristic%20Agent%20Ledger%20by%20confrontation.md") --- ##### Report a Snap Store violation * [Report this Snap](https://snapcraft.io/install/halc/centos#report-snap-modal) --- ## Enable snaps on CentOS and install halc Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully. Snaps are discoverable and installable from the [Snap Store](https://snapcraft.io/store), an app store with an audience of millions. ### Enable snapd Snap is available for [CentOS 7.6+](https://snapcraft.io/install/halc/centos), and Red Hat Enterprise Linux 7.6+, from the [Extra Packages for Enterprise Linux](https://fedoraproject.org/wiki/EPEL) (EPEL) repository. The EPEL repository can be added to your system with the following command: ``` sudo yum install epel-release ``` Snap can now be installed as follows: ``` sudo yum install snapd ``` Once installed, the *systemd* unit that manages the main snap communication socket needs to be enabled: ``` sudo systemctl enable --now snapd.socket ``` To enable *classic* snap support, enter the following to create a symbolic link between `/var/lib/snapd/snap` and `/snap`: ``` sudo ln -s /var/lib/snapd/snap /snap ``` Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly. ### Install halc To install halc, simply use the following command: ``` sudo snap install halc ``` ### Other popular snaps… [See more...](https://snapcraft.io/search?categories=featured) [See more in Featured](https://snapcraft.io/search?categories=featured) ### More things to do… #### [Get the snap store](https://snapcraft.io/snap-store) Browse and find snaps from the convenience of your desktop using the snap store snap. #### [Learn more about snaps](https://snapcraft.io/docs) Interested to find out more about snaps? Want to publish your own application? Visit [snapcraft.io](https://snapcraft.io/) now. [Back to top](https://snapcraft.io/install/halc/centos) © 2026 Canonical Ltd. Ubuntu and Canonical are registered trademarks of Canonical Ltd. 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