A: Erythros is an operating system that is based on TempleOS. It is written in the HolyC programming language and is released under the Unlicense, placing it in the public domain.

Q: What programming language is Erythros written in?

A: Erythros is written in HolyC, which is the same programming language used to develop the TempleOS operating system.

Q: What license does Erythros use?

A: Erythros uses the Unlicense. This means the code is copyrighted but has been dedicated to the public domain by the copyright holder, allowing for free use, modification, and distribution.

Q: Where can I find the source code for Erythros?

A: The source code for Erythros is available in a public Git repository located at https://git.checksum.fail/alec/erythros.git.

Erythros

operating system based on TempleOS

CreativeWork operating_system Q66809454

Press Enter · cited answer in seconds

Erythros

Summary

Erythros is an operating system^[1].

Key Facts

Erythros's instance of is recorded as operating system^[2].
Erythros's based on is recorded as TempleOS^[3].
Erythros's copyright license is recorded as Unlicense^[4].
Erythros's programmed in is recorded as HolyC^[5].
Erythros's source code repository URL is recorded as https://git.checksum.fail/alec/erythros.git^[6].
Erythros's copyright status is recorded as copyrighted, dedicated to the public domain by copyright holder^[7].

⭐ Popularity Graph

0/100 long tail

📊 Google Search Volume

1,300/mo Informational

Quick Facts

Instance of operating system

License Unlicense

Instance of operating system

Programming language HolyC

Based on TempleOS

Properties

Based on TempleOS

Programmed in HolyC

Source code repository url git.checksum.fail

📊 Search Metrics

Difficulty 4/100

CPC $5.97

Competition 0.02

🔗 Connections

Based on 1

TempleOS

Unlicense

Instance of 1

operating system

Programmed in 1

HolyC

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[2] ↑ Erythros — instance of (P31): operating system. wikidata.org.
[3] ↑ Erythros — based on (P144): TempleOS. wikidata.org.
[4] ↑ Erythros — copyright license (P275): Unlicense. git.checksum.fail. git.checksum.fail. Provenance: wikidata.org.
[5] ↑ Erythros — programmed in (P277): HolyC. wikidata.org.
[6] ↑ Erythros — source code repository URL (P1324): https://git.checksum.fail/alec/erythros.git. wikidata.org.
[7] ↑ Erythros — copyright status (P6216): copyrighted, dedicated to the public domain by copyright holder. wikidata.org.

Class ancestry

[1] ↑ Erythros is an instance of operating system (Q9135) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Erythros. Retrieved May 3, 2026, from https://4ort.xyz/entity/erythros

MLA “Erythros.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/erythros.

BibTeX

@misc{4ortxyz_erythros_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Erythros}}, year = {2026}, url = {https://4ort.xyz/entity/erythros}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Erythros — https://4ort.xyz/entity/erythros (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/erythros · Last refreshed: May 3, 2026

Erythros

Erythros

Summary

Key Facts

Related Entities

References

Direct Wikidata claims

Class ancestry

📑 Cite this page