fact @ 0.4.1 View on hex.pm View source on GitHub

A file system based event store.

All systems passing
Footprint: 686.4 KB Last scan: 2026-04-20
host pass log ↗
riscv64 pass log ↗
arm64 pass log ↗
x86_64 pass log ↗
Dependencies & versions
Version Tested
0.4.1
Last Test Run
2026-04-20T11:42:30.320623Z
Compilation Determinism
Deterministic

Runtime Dependencies (3)

Package Status Requirement Optional
jason pass ~> 1.4 Yes
phoenix_pubsub pass ~> 2.2 No
uuid_erl not scanned ~> 2.0 No
Beam scanner — runtime capability snapshot
Beam scanner
Runtime capability snapshot

Static scan of the compiled release after mix firmware.

Systems scanned: nerves_system_mangopi_mq_pro@0.15.3, nerves_system_rpi4@2.0.2, nerves_system_x86_64@1.33.3
Languages: elixir
BEAM files: 145
NIF usage
Not detected
Native code or C bindings
Shell/OS exec
Not detected
External commands or ports
Shell helpers
Not detected
Shell commands via System/os
App config reads
Not detected
Application env lookups
OS env reads
Not detected
Environment variable access
Start callback
Not detected
Application start callback defined
Halt calls
Detected
Elixir.Mix.Tasks.Fact.Merkle.VerifyProof Elixir.System:halt/1
Dependency scans — transitive + OTP apps
Dependency scans
Transitive + OTP apps

Static scan of every app in the built release (including OTP libs).

App File Count Size Languages NIF OS exec Shell App env OS env Start callback
asn1@5.4.3 25 638.4 KB erlang Yes No No No No No
circular_buffer@1.0.0 5 7.1 KB elixir No No No No No No
compiler@9.0.6 62 1.1 MB erlang No No No No Yes No
crypto@5.8.3 7 641.7 KB erlang Yes No No Yes No No
elixir@1.19.4 273 2.6 MB elixir, erlang No Yes No Yes Yes Yes
fact@0.4.1 146 686.4 KB elixir No No No No No No
iex@1.19.4 32 169.6 KB elixir No Yes Yes Yes Yes Yes
inets@9.6.2 65 325.2 KB erlang No Yes No Yes No Yes
jason@1.4.4 28 134.5 KB elixir No No No No No No
kernel@10.6.2 105 1.0 MB erlang Yes Yes Yes Yes Yes Yes
logger@1.19.4 12 71.0 KB elixir No No No Yes No Yes
nerves_compatibility_test@0.1.0 3 2.3 KB elixir No No No No No Yes
nerves_logging@0.2.4 7 24.4 KB elixir No Yes No No No No
nerves_runtime@0.13.12 16 54.2 KB elixir No Yes No Yes No Yes
nerves_uevent@0.1.3 5 63.1 KB elixir No Yes No Yes No Yes
phoenix_pubsub@2.2.0 15 73.7 KB elixir No No No No No Yes
property_table@0.3.3 9 34.2 KB elixir No No No No No No
public_key@1.20.3 42 1.3 MB erlang Yes Yes No Yes No No
quickrand@2.0.7 8 29.5 KB erlang No No No Yes No No
ring_logger@0.11.5 8 54.6 KB elixir No No No Yes No No
runtime_tools@2.3.1 17 209.4 KB erlang Yes Yes Yes Yes Yes Yes
sasl@4.3.2 19 167.8 KB erlang No Yes No Yes Yes Yes
shoehorn@0.9.3 9 19.2 KB elixir No No No Yes No Yes
ssl@11.5.4 80 723.9 KB erlang No No No Yes No Yes
stdlib@7.3 98 2.4 MB erlang Yes Yes No Yes Yes No
toolshed@0.4.2 10 59.0 KB elixir No Yes No Yes No No
uboot_env@1.0.2 6 11.8 KB elixir No No No No No No
uuid@2.0.7 2 20.7 KB erlang No No No No No No
System compatibility — detailed table

System Compatibility

System Status Version Tested Footprint (this system) Log
host (Elixir 1.19.4 / Erlang 28) pass fact@0.4.1 N/A (host compile) View log
nerves_system_mangopi_mq_pro@0.15.3 pass fact@0.4.1
146 files, 686.4 KB
Firmware: 23.8 MB
 View log
nerves_system_rpi4@2.0.2 pass fact@0.4.1
146 files, 686.4 KB
Firmware: 39.5 MB
 View log
nerves_system_x86_64@1.33.3 pass fact@0.4.1
146 files, 686.4 KB
Firmware: 27.4 MB
 View log

⚠️ Important: A "passing" status means that the package compiled successfully with Nerves for this system. It does not guarantee that the package will work correctly at runtime or that all features are compatible with Nerves.

The compatibility test only verifies that:

  • The package and its dependencies can be fetched from Hex.pm
  • All dependencies are from Hex (no git or path dependencies)
  • The firmware can be built successfully

If you believe a status is incorrect or have additional compatibility information, please create an issue.