Run 9 Aug 2026

Results as of this run. The arrow shows each target's movement since the previous run it was tested in. Targets marked “carried” weren't re-run this time, so their most recent result is shown instead.

When this run was published the board led with a single correctness percentage. The figures here are that run's own results restated as divergence and coverage, so they read differently from what this page showed at the time. The changelog has the change.

1. DynamoDB

   live (AWS)

   Runs via: AWS service

   – Grade baseline

   no divergence in all 32 regions · covers 100.0% of the suite

   ground truth
   Tier breakdown

   Tier 1 · Core 0.0% diverges

   100.0% covered

   Tier 2 · Complete 0.0% diverges

   100.0% covered

   Tier 3 · Strict 0.0% diverges

   100.0% covered
2. Dynoxide

   0.13.0 14 unsupported ; covers 98.6% of the suite

   Runs via: npx, Docker, Homebrew, binary, npm, cargo, embedded, GitHub Action, source

   Disclosure: maintained by this board's author

   A Grade A

   no divergence · covers 98.6% of the suite · coverage lowers this row to A

   – 0.0pp unchanged
   Tier breakdown

   Tier 1 · Core 0.0% diverges

   100.0% covered

   Tier 2 · Complete 0.0% diverges

   93.0% covered 14 unsupported

   Tier 3 · Strict 0.0% diverges

   100.0% covered
   Also built for WebAssembly / OPFS

   • ↳ WebAssembly / OPFS
     B Grade B

     no divergence in 6 regions · up to 0.3% in the other 26 · covers 78.7% · coverage lowers this row to B · last measured 24 Jul 2026
3. ExtendDB

   v0.1.2 87 unsupported ; covers 91.3% of the suite

   Runs via: source

   A Grade A

   low divergence (2.0%) · covers 91.3% of the suite

   – 0.0pp unchanged
   Tier breakdown

   Tier 1 · Core 0.8% diverges

   100.0% covered

   Tier 2 · Complete 3.5% diverges

   58.3% covered 83 unsupported

   Tier 3 · Strict 2.8% diverges

   98.8% covered 4 unsupported
4. Ministack

   ae248c59e9bf

   Runs via: pip, Docker, source

   B Grade B

   moderate divergence (11.2%) · covers 100.0% of the suite

   ▼ 4.9pp less diverged 4.9 percentage points less
   Tier breakdown

   Tier 1 · Core 3.2% diverges

   100.0% covered

   Tier 2 · Complete 17.1% diverges

   100.0% covered

   Tier 3 · Strict 19.4% diverges

   100.0% covered
5. Dynalite

   4.0.0 200 unsupported ; covers 80.0% of the suite

   Runs via: npm, npx, embedded

   C Grade C

   moderate divergence (12.5%) · covers 80.0% of the suite · coverage lowers this row to C

   ▲ 0.2pp more diverged 0.2 percentage points more
   Tier breakdown

   Tier 1 · Core 8.6% diverges

   100.0% covered

   Tier 2 · Complete 14.1% diverges

   20.1% covered 159 unsupported

   Tier 3 · Strict 17.3% diverges

   87.3% covered 41 unsupported
6. LocalStack

   2026.7.2 8 unsupported ; covers 99.2% of the suite

   Runs via: Docker, pip, Homebrew, binary

   C Grade C

   high divergence (15.7%) · covers 99.2% of the suite

   ▲ 0.1pp more diverged 0.1 percentage points more
   Tier breakdown

   Tier 1 · Core 6.5% diverges

   100.0% covered

   Tier 2 · Complete 18.1% diverges

   96.0% covered 8 unsupported

   Tier 3 · Strict 27.8% diverges

   100.0% covered
7. DynamoDB Local

   ff89bd48ff32 21 unsupported ; covers 97.9% of the suite

   Runs via: Docker, JAR, Maven

   C Grade C

   high divergence (16.0%) · covers 97.9% of the suite

   ▲ 0.1pp more diverged 0.1 percentage points more
   Tier breakdown

   Tier 1 · Core 7.8% diverges

   100.0% covered

   Tier 2 · Complete 16.1% diverges

   89.4% covered 21 unsupported

   Tier 3 · Strict 28.1% diverges

   100.0% covered
8. Floci

   eab36252ea43 9 unsupported ; covers 99.1% of the suite

   Runs via: Docker, Homebrew, install script, Scoop, binary, JAR

   C Grade C

   high divergence (20.8%) · covers 99.1% of the suite

   ▼ 0.1pp less diverged 0.1 percentage points less
   Tier breakdown

   Tier 1 · Core 8.6% diverges

   100.0% covered

   Tier 2 · Complete 36.2% diverges

   95.5% covered 9 unsupported

   Tier 3 · Strict 29.3% diverges

   100.0% covered