Skip to content

PointSav Documentation

The engineering library for the PointSav platform — operating systems and services for regulated businesses that own their data, their AI, and their record-keeping outright. Where the monorepo holds the code, this wiki holds the reasoning: architecture, services, security, and the governance commitments that bind future development.

PointSav Digital Systems

OS family — eight operating systems, one substrate

← All revisions

eefc33ef · PointSav Digital Systems ·

fix(bcsc): correct 5 articles falsely asserting os-console runs under seL4 with a custom WGPU/SDF-glyph stack — hedge to planned/roadmap language per BRIEF-os-console-rebuild-2030's honesty rail

View the full record as of this revision →

@@ -10,14 +10,24 @@ status: active
audience: vendor-public
bcsc_class: public-disclosure-safe
language_protocol: PROSE-TOPIC
last_edited: 2026-05-15
last_edited: 2026-07-18
editor: pointsav-engineering
paired_with: os-family-overview.es.md
short_description: "PointSav builds eight purpose-built operating systems sharing a common seL4 + Rust substrate. Each does one job and communicates via a Diode-based protocol."
short_description: "PointSav builds eight purpose-built operating systems, designed around a shared Rust discipline and a Diode-based protocol; a common seL4 microkernel substrate is a roadmap target, not the current state of every member."
cites: []
---

PointSav builds eight purpose-built operating systems that share a common [[sel4-microkernel-substrate|seL4 microkernel]] substrate, a common Rust language discipline, and a common [[diode-standard|Diode]]-based communication protocol. Each OS does one job and contains no feature it does not need. The family ranges from a human-facing terminal to a sovereign cloud appliance, yet every member compiles from the same kernel and speaks the same protocol. This article covers the eight members of the OS family, the substrate they share, how they compose into [[deployment-patterns|deployments]], and the Diode discipline that governs command flow across all of them.
PointSav builds eight purpose-built operating systems, designed around a common Rust
language discipline and a common [[diode-standard|Diode]]-based communication protocol.
Each OS does one job and contains no feature it does not need. **A shared
[[sel4-microkernel-substrate|seL4 microkernel]] substrate is a roadmap target for the OS
family, not a description of every member as it ships today** — `os-console`, for
example, runs today as a standard terminal application (`ratatui`/`crossterm`), with no
current seL4 dependency; other family members' current build-vs-planned status against
this substrate has not been verified article-by-article and should not be assumed uniform
without checking. This article covers the eight members of the OS family, the substrate
they are designed to share, how they compose into [[deployment-patterns|deployments]], and
the Diode discipline that governs command flow across all of them.

## The eight operating systems

@@ -42,7 +52,7 @@ All eight operating systems share the same foundational layer:

| Layer | Component | Purpose |
|---|---|---|
| Kernel | [[sel4-microkernel-substrate|seL4 microkernel]] | Mathematically verified hardware isolation |
| Kernel | [[sel4-microkernel-substrate|seL4 microkernel]] (planned substrate — not yet the shipped kernel for every OS family member; confirmed not yet integrated into `os-console`) | Mathematically verified hardware isolation |
| Language | Rust (memory-safe; no garbage collector) | All `system-*`, `service-*`, and `os-*` code; C/C++ banned at L3 and above |
| Drivers | sDDF (seL4 Device Driver Framework) | Direct hardware access without runtime bloat |
| Protocol | PointSav Protocol (PSP) | Capability-based binary protocol; tunnels through TLS and VirtIO at the edge |
Important Information

Corporate structure. PointSav Digital Systems ("PointSav") is currently a trade name of Woodfine Capital Projects Inc. ("Woodfine"), planned to become a wholly-owned Woodfine subsidiary upon incorporation. PointSav does not itself offer, sell, or solicit any security. Any securities offering associated with Woodfine's real-property direct-hold solutions is made exclusively by Woodfine, and only by means of the applicable Private Placement Memorandum.

No investment advice. This wiki's content is provided for engineering, operational, research, and development purposes. Nothing on this wiki constitutes investment advice or a solicitation to invest in any Woodfine partnership or direct-hold solution.

Intellectual property. The PointSav name, trade name, wordmark, and marks, together with all current and future PointSav- and Totebox-branded products, services, and offerings — and the software, source code, documentation, design system, and all related materials — are proprietary to Woodfine and its affiliates, except for components identified as open source. No rights are granted except as expressly set out in a written license or agreement. The full trademark notice appears in the footer of every page on this site.

Open source components. Portions of the platform are made available under permissive open-source licenses identified in the accompanying repository. Use of those components is governed by their respective license terms.

No warranty; informational use. Content on this wiki is provided for general informational purposes only and does not constitute a representation, warranty, or commitment with respect to product functionality, availability, pricing, or roadmap. Some articles describe planned or intended features, capabilities, and milestones — language such as "planned," "intended," "targeted," "may," and "expected" marks this forward-looking content, which is subject to change and does not constitute a commitment regarding future performance.

Confidentiality. Where an article describes an operational or deployment detail that is not intended for public disclosure, that article is not published on this wiki. Content here is general-purpose engineering documentation, not customer-specific configuration.

Jurisdiction. Woodfine Capital Projects Inc. is organized in British Columbia, Canada. References to the Sovereign Data Foundation on this wiki describe a planned or intended initiative only, not a current equity holder or active governance body.

Changes to this notice. PointSav may update this notice from time to time; the version posted on this page governs.

Not a filing system. This wiki is not a securities filing system, an electronic disclosure repository, or a substitute for SEDAR+ or any other regulatory filing system. Formal securities filings are made through the applicable regulatory filing system, not through this wiki.

Full disclaimer. This notice supplements, and does not replace, the full Disclaimers article. In the event of any conflict, the full Disclaimers article governs.

Read the full disclaimer →