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| 1 | +# SplatForge → Catetus rename |
| 2 | + |
| 3 | +**Effective:** 2026-05-19. |
| 4 | +**Status:** Rename landed in code, packages, and infrastructure. Public flip of |
| 5 | +the OSS repo (`catetus/catetus`) is gated on the Phase 9 verification gauntlet |
| 6 | +documented in `experiments/launch-readiness/RENAME_TO_CATETUS_PLAN.md`. |
| 7 | + |
| 8 | +## Why |
| 9 | + |
| 10 | +SplatForge's namespace collided with an existing Blender add-on. *Catetus* |
| 11 | +(Greek `κάθετος`, pronounced **KAT-eh-tus**) is the perpendicular leg of a |
| 12 | +right triangle — the geometric primitive that anchors every spatial |
| 13 | +measurement. The new name is unambiguous in package registries, search, |
| 14 | +and standards bodies, and reads cleanly in plugin marketplaces. |
| 15 | + |
| 16 | +## What changed |
| 17 | + |
| 18 | +| Surface | Before | After | |
| 19 | +|---|---|---| |
| 20 | +| Brand | SplatForge | Catetus | |
| 21 | +| Primary domain | `splatforge.dev` | `www.catetus.com` (`splatforge.dev` 308→) | |
| 22 | +| API domain | `api.splatforge.dev` | `api.catetus.com` | |
| 23 | +| GitHub org | `montabano1` (user) | [`catetus`](https://github.com/catetus) | |
| 24 | +| OSS repo | `montabano1/SplatForge` | `catetus/catetus` (redirects preserved) | |
| 25 | +| npm scope | `@splatforge/*` | `@catetus/*` | |
| 26 | +| Rust crate prefix | `splatforge-*` | `catetus-*` | |
| 27 | +| CLI binary | `splatforge` | `catetus` | |
| 28 | +| API key prefix | `sf_live_*` / `sf_test_*` | `ct_live_*` / `ct_test_*` *(Phase 4 cutover; old keys honored for 30 days)* | |
| 29 | +| glTF vendor prefix | `SF_*` (`SF_zstd_split_buffer`, etc.) | `CT_*`; legacy `SF_*` decoded with deprecation warning for one minor version | |
| 30 | +| Env-var prefix | `SPLATFORGE_*` | `CATETUS_*` | |
| 31 | + |
| 32 | +## How to migrate consumer dependencies |
| 33 | + |
| 34 | +### npm |
| 35 | + |
| 36 | +```bash |
| 37 | +# Replace each @splatforge package with its @catetus equivalent |
| 38 | +pnpm remove @splatforge/viewer @splatforge/sf-glb-polyfill |
| 39 | +pnpm add @catetus/viewer @catetus/glb-polyfill |
| 40 | +``` |
| 41 | + |
| 42 | +Note that `sf-glb-polyfill` drops the now-redundant `sf-` prefix in the |
| 43 | +process. The new package is published under `@catetus/glb-polyfill`. |
| 44 | + |
| 45 | +### Cargo |
| 46 | + |
| 47 | +```toml |
| 48 | +# Replace splatforge-* dependencies with catetus-* |
| 49 | +[dependencies] |
| 50 | +catetus-gltf = "0.2" |
| 51 | +catetus-spz = "0.1" |
| 52 | +catetus-ply = "0.1" |
| 53 | +``` |
| 54 | + |
| 55 | +The crate APIs are unchanged from their final `splatforge-*` versions; only |
| 56 | +the package names move. Imports also pick up the new snake_case crate |
| 57 | +identifier: |
| 58 | + |
| 59 | +```rust |
| 60 | +// Before |
| 61 | +use splatforge_gltf::{read_glb, GltfError}; |
| 62 | + |
| 63 | +// After |
| 64 | +use catetus_gltf::{read_glb, GltfError}; |
| 65 | +``` |
| 66 | + |
| 67 | +### glTF vendor extensions |
| 68 | + |
| 69 | +If you encode new assets, write `CT_*` extension names exclusively: |
| 70 | + |
| 71 | +```json |
| 72 | +{ |
| 73 | + "extensionsUsed": ["KHR_gaussian_splatting", "CT_zstd_split_buffer"] |
| 74 | +} |
| 75 | +``` |
| 76 | + |
| 77 | +If you load assets encoded before the rename, both reference decoders |
| 78 | +(Rust `catetus-gltf` and TypeScript `@catetus/glb-polyfill`) accept the |
| 79 | +legacy `SF_*` keys for one minor version cycle and log a deprecation |
| 80 | +warning. Re-encode any retained fixtures before the back-compat shim |
| 81 | +is dropped (target: 4-6 weeks). |
| 82 | + |
| 83 | +### Environment variables |
| 84 | + |
| 85 | +Rename `SPLATFORGE_*` → `CATETUS_*` in deployment configs. The hosted |
| 86 | +API (api.catetus.com) reads `CATETUS_API_KEY`, `CATETUS_CAPTURE_URL`, |
| 87 | +etc.; legacy `SPLATFORGE_*` env vars are not honored. |
| 88 | + |
| 89 | +### Domain redirects |
| 90 | + |
| 91 | +- `splatforge.dev` → `www.catetus.com` (308, persistent) |
| 92 | +- `splatforge-api.fly.dev` → `api.catetus.com` (planned 301; running in |
| 93 | + parallel until ~2026-08-19 then sunsets) |
| 94 | +- Old GitHub repo URLs follow GitHub's automatic permanent-redirect; old |
| 95 | + `git clone`s and CI badges keep working. |
| 96 | + |
| 97 | +## What did NOT change |
| 98 | + |
| 99 | +- File-format internals: `.shpal` sidecar wire format, `.glb.v5tail` sidecar |
| 100 | + wire format, on-disk magic bytes — all preserved. |
| 101 | +- Algorithm IP: T2.1.R weighted Lloyd centroids, V5.2 joint-tail residuals, |
| 102 | + PostHAC hash-grid hyperprior — all unchanged. |
| 103 | +- Standards alignment: `KHR_gaussian_splatting`, `KHR_gaussian_splatting_compression_spz`, |
| 104 | + OpenUSD `ParticleField3DGaussianSplat` — all still the standards-body-owned |
| 105 | + identifiers, untouched. |
| 106 | +- Test fixtures (semantically): byte-deterministic generation scripts ship |
| 107 | + the new `CT_*` extension names, but every fixture is regenerable from |
| 108 | + source via `scripts/generate-fixtures.sh`. |
| 109 | + |
| 110 | +## Historical notes |
| 111 | + |
| 112 | +Pre-2026-05-19 internal documents (engplan-v2 through v5, EXECUTION-LOG, |
| 113 | +research/queue, daily STATE_OF_APP snapshots) keep their original |
| 114 | +"SplatForge" naming. A one-line front-matter note flags the rename. These |
| 115 | +are intentionally preserved as the audit trail. |
| 116 | + |
| 117 | +## Reference |
| 118 | + |
| 119 | +- Rename plan: [`experiments/launch-readiness/RENAME_TO_CATETUS_PLAN.md`](experiments/launch-readiness/RENAME_TO_CATETUS_PLAN.md) |
| 120 | +- Rename status report (final): [`experiments/launch-readiness/RENAME_STATUS_2026-05-19.md`](experiments/launch-readiness/RENAME_STATUS_2026-05-19.md) |
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