What is this?
Lore is Epic Games' next-generation open source version control system, built for huge repos and teams — especially projects mixing code with large binary assets, like games and entertainment.
Lore is Epic Games' next-generation open source version control system, built for huge repos and teams — especially projects mixing code with large binary assets, like games and entertainment.Is it one tool or a whole system?It's a suite: a core library, a centralized Lore server, and a CLI. Repository state is stored as content-addressed Merkle trees with an immutable revision chain, and the CLI exposes all functionality.
It's a suite: a core library, a centralized Lore server, and a CLI. Repository state is stored as content-addressed Merkle trees with an immutable revision chain, and the CLI exposes all functionality.How do I get it running?Install Lore, then start a local server in demo mode — the README has ready commands for macOS/Linux and Windows PowerShell. The Quickstart guide then walks you through your first commit.
Install Lore, then start a local server in demo mode — the README has ready commands for macOS/Linux and Windows PowerShell. The Quickstart guide then walks you through your first commit.Is it production-ready?Lore is pre-1.0 and under active development: interfaces, on-disk formats, and APIs may change between releases, so expect churn if you build on it.
Lore is pre-1.0 and under active development: interfaces, on-disk formats, and APIs may change between releases, so expect churn if you build on it.Which platforms does it run on?macOS, Linux, and Windows — demo-mode install commands are provided for all three.
macOS, Linux, and Windows — demo-mode install commands are provided for all three.How does Lore handle huge binary files like game assets?Files are stored as reusable, content-addressed chunks with indexed lookup, so big assets are deduplicated and updates and transfers stay efficient. Workspaces can also stay sparse, fetching file data only when it's actually needed.
Files are stored as reusable, content-addressed chunks with indexed lookup, so big assets are deduplicated and updates and transfers stay efficient. Workspaces can also stay sparse, fetching file data only when it's actually needed.Are branches cheap to create and switch?Yes. Branches are lightweight mutable references, so creating and switching them is low-overhead with no duplication of the underlying data — built for freely experimenting, iterating, and releasing.
Yes. Branches are lightweight mutable references, so creating and switching them is low-overhead with no duplication of the underlying data — built for freely experimenting, iterating, and releasing.What does Lore have to do with Fortnite?Lore is already the built-in version control system for UEFN (Unreal Editor for Fortnite). The open source tooling can't talk to those UEFN repos yet because UEFN uses a proprietary compression format, but Epic is migrating UEFN to the same open format this project uses.
Lore is already the built-in version control system for UEFN (Unreal Editor for Fortnite). The open source tooling can't talk to those UEFN repos yet because UEFN uses a proprietary compression format, but Epic is migrating UEFN to the same open format this project uses.Can I integrate Lore with my own tools?Yes — the API is described as full-surface, reachable via C/C++, C#, Rust, Go, Python, or JavaScript, with official SDK repos for JavaScript, Python, C#, and Go. The CLI itself gives one-to-one access to all Lore functionality.
Yes — the API is described as full-surface, reachable via C/C++, C#, Rust, Go, Python, or JavaScript, with official SDK repos for JavaScript, Python, C#, and Go. The CLI itself gives one-to-one access to all Lore functionality.What are similar projects?SpacetimeDB, nakama, AirSim, kubo, z3, supertonic, walgithub, crab
SpacetimeDB, nakama, AirSim, kubo, z3, supertonic, walgithub, crabWhich topics is it in?unreal-engine, version-control, storage, game-development, csharp, cpp, rust, go, api, server, docker, javascript
unreal-engine, version-control, storage, game-development, csharp, cpp, rust, go, api, server, docker, javascript