add whitepapers olive branch post, Matrix DevRel cover letter

new post on AGPL vs public domain licensing for three
permacomputer whitepapers. cover letter for Matrix.org
Senior DevRel role. CLAUDE.md updates for Matrix usage
and media gallery link in cover letter template.

CLAUDE.md

@@ -160,6 +160,10 @@ Git operations can be destructive to uncommitted work. Always preserve user's wo
 
 **Russell ONLY works remote.** Do not apply to or write cover letters for positions that are not fully remote. If a job posting says hybrid, on-site, or in-office, skip it.
 
+**Russell uses & administers Matrix channels on matrix.org.** Relevant for DevRel, community, & communication-focused roles.
+
+**media.unturf.com** - Russell's media gallery (dark theme, black & white aesthetic). Include in cover letter contact links when it strengthens the application (e.g., content/media/DevRel roles).
+
 ## JSONRESUME POLICY
 
 **NEVER include phone number in JSONResume files** - they're public, use email only.
@@ -183,7 +187,7 @@ Russell Ballestrini
 
 .. class:: center
 
-russell@unturf.com | `russell.ballestrini.net <https://russell.ballestrini.net>`_ | `GitHub <https://github.com/russellballestrini>`_
+russell@unturf.com | `russell.ballestrini.net <https://russell.ballestrini.net>`_ | `GitHub <https://github.com/russellballestrini>`_ | `Media <https://media.unturf.com>`_
 
 ----
 
@@ -295,6 +299,7 @@ edge [color="#AAAAAA" arrowsize=0.6 fontcolor="#AAAAAA"]
 | remarkbox | Python / Pyramid | Hosted comments service |
 | neopig | Python / FastAPI | Web archival, crawling, full-text search, dedup |
 | dry | C++ / CMake | Urho3D fork, 2D/3D game engine |
+| media.unturf.com | — | Media gallery (dark theme, b&w aesthetic) |
 
 **Key corrections for cover letters:**
 - unsandbox.com is **Elixir/Phoenix**, NOT FastAPI or Python

content/2026-03-07-two-doors-shut-one-remains-open-an-olive-branch.rst

@@ -0,0 +1,56 @@
+two doors shut, one remains open, an olive branch
+###################################################
+
+:author: Russell Ballestrini
+:slug: two-doors-shut-one-remains-open-an-olive-branch
+:date: 2026-03-07
+:tags: Code, Opinion
+:status: published
+
+.. image:: /uploads/2026/permacomputer-logo.jpg
+   :width: 42%
+   :align: center
+
+We published three whitepapers. Each describes a machine learning algorithm. Each emerged from production code running on the permacomputer. Two now carry the AGPL-3.0-only license. One stays public domain.
+
+The two sealed doors
+--------------------
+
+**Categorization & Feedback** formalizes a universal interaction pattern. Two machine learning API calls per user input: one classifies, one generates feedback. A YAML state machine governs transitions. The algorithm ports to any language with an HTTP client & a YAML parser. We proved it across 58+ language variants, 112 research activities, & a production real-time web application called OpenCompletion.
+
+**Reverse Retrieval Augmented Generation** inverts the standard RAG pipeline. Instead of server-side vector search, the client extracts live content from the page the user views & injects it into the conversation context. No embeddings. No vector database. No indexing. Small 8B models punch above their weight when you feed them exactly what the user looks at.
+
+Both carry AGPL-3.0-only. If you use them, you share your modifications. The copyleft ensures these algorithms stay free, stay open, & never get swallowed by proprietary wrappers. The code grows in the open or it does not grow at all.
+
+The open door
+-------------
+
+**Machine Learning Agent Self-Sandbox Algorithm** describes how a machine learning agent provisions its own infrastructure. Discovery, payment, authentication, orchestration, inception. Turtles all the way down, bounded by walls that matter. We proved it through 2,324 automated assertions & months of production operation.
+
+This one stays public domain.
+
+No license restrictions. No copyleft obligations. No attribution required. Cite it like you cite math. Reference it like a theorem. Build on it like you build on Euler or Shannon or Turing. The algorithm belongs to everyone.
+
+Why leave one door open?
+------------------------
+
+Three sealed doors communicate fortress. Three locked algorithms say: we protect everything, trust nothing, share reluctantly.
+
+That misrepresents our position.
+
+We protect the interaction patterns (categorization & feedback, reverse RAG) because those algorithms embed directly into applications people ship. Copyleft prevents extraction without contribution. Someone who improves the feedback loop or the context injection owes those improvements back to the commons.
+
+The self-sandbox algorithm operates differently. It describes infrastructure choreography: how agents discover their environment, pay for resources, authenticate, orchestrate containers, & recurse into child sandboxes. This knowledge wants to spread without friction. Every agent framework, every cloud provider, every hobbyist running containers in a garage should have access to this pattern without reading a license first.
+
+An olive branch says: we build walls where walls protect the commons, & we leave doors open where openness accelerates the mission.
+
+The permacomputer needs both.
+
+Links
+-----
+
+- `Categorization & Feedback: All You Need <https://git.unturf.com/books/classification-and-feedback-is-all-you-need>`_ (AGPL-3.0-only)
+- `Reverse Retrieval Augmented Generation <https://git.unturf.com/engineering/unturf/reverse-retrieval-augmented-generation-whitepaper>`_ (AGPL-3.0-only)
+- `Machine Learning Agent Self-Sandbox Algorithm <https://git.unturf.com/engineering/unturf/machine-learning-agent-self-sandbox-algo-whitepaper>`_ (Public Domain)
+- `permacomputer.com <https://www.permacomputer.com>`_
+- `uncloseai.com <https://uncloseai.com>`_

content/pages/cover-letters/2026-03-07-matrix-senior-devrel-russell-ballestrini.rst

@@ -0,0 +1,31 @@
+
+Russell Ballestrini
+===================
+
+.. class:: center
+
+**Senior Developer Relationship Engineer | The Matrix.org Foundation**
+
+.. class:: center
+
+russell@unturf.com | `russell.ballestrini.net <https://russell.ballestrini.net>`_ | `GitHub <https://github.com/russellballestrini>`_ | `Media <https://media.unturf.com>`_
+
+----
+
+To the Matrix.org Foundation team:
+
+15+ years building open-source infrastructure, writing technical content, & growing developer communities. I've published 180+ technical blog posts since 2010, maintained open-source projects with active contributor bases, & built developer-facing platforms from scratch. Developer relations feels like a natural convergence of everything I've done.
+
+Open-source community work runs through my entire career. I created remarkbox, a hosted comment system that embeds in static sites, serving a community of publishers who integrate via a simple JavaScript snippet. I built unsandbox.com, an anonymous code execution API supporting 42+ languages, designed for both human developers & machine learning agents. I authored ``ago``, a Python library that humanizes datetime objects, released to the public domain. Each project required developer documentation, onboarding guides, & ongoing community engagement to sustain adoption.
+
+On content production: my blog at russell.ballestrini.net covers Python, DevOps, AWS, security, & infrastructure topics with a 15-year publishing history. I've written technical guides, architectural deep-dives, & ecosystem commentary. I also authored "uncloseai. Machine Learning Reference Guide to Inference Clients," covering streaming techniques across 42 programming languages. Translating complex technical concepts into accessible developer content comes naturally.
+
+The technical foundation matches what you need. I've worked as a sysadmin (Unix administration at CSC for DoD), a DevOps engineer (Mandiant, now Google), & a site reliability lead (Remind, 30M users, 60+ microservices). I write Python, Bash, Go, JavaScript, Elixir, & Ruby. I run my own infrastructure on bare metal & cloud, manage DNS, deploy with CI/CD pipelines, & operate containerized services. When developers ask technical questions, I can answer from direct experience.
+
+Matrix's mission resonates with my own work. I use Matrix daily & administer channels on matrix.org, so I know the platform as both a user & a community operator. I wrote a permacomputer manifesto advocating for infrastructure that outlasts its builders, decentralized by design, open by default. Federation, open protocols, & community governance align with how I think about technology. I'd bring genuine conviction to promoting Matrix, not just professional polish.
+
+I'd welcome the chance to discuss how my experience fits what you need.
+
+|
+
+Russell Ballestrini