commit 446e2190140e963353c7b2036a7efdf9e1393f19
Author: Klagarge <remi@heredero.ch>
Date:   Thu Mar 19 21:05:44 2026 +0100

    chore: init

diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
new file mode 100644
index 0000000..1f72a9c
--- /dev/null
+++ b/.github/workflows/build-release.yml
@@ -0,0 +1,85 @@
+name: Build PDF & Release
+run-name: Build PDF and Release ${{ github.ref_name }}
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - '**.md'
+      - '.github/workflows/**'
+      - 'md-pdf.ron'
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Setup Rust cache
+        uses: swatinem/rust-cache@v2
+
+      - name: Install Typst
+        run: |
+          mkdir -p /usr/local/bin
+          curl -L -o typst.tar.xz https://github.com/typst/typst/releases/latest/download/typst-x86_64-unknown-linux-musl.tar.xz
+          tar -xJf typst.tar.xz --strip-components=1 -C /usr/local/bin/ typst-x86_64-unknown-linux-musl/typst
+          typst --version
+
+      - name: Install md-pdf (Rust)
+        run: |
+          cargo install md-pdf
+          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.23'
+
+      - name: Install svu (Go)
+        run: go install github.com/caarlos0/svu@latest
+
+      - name: Build PDF
+        run: |
+          md-pdf README.md
+          mv README.pdf PIS.pdf
+
+      # Calculate version based on commit messages (fix, feat, breaking)
+      - name: Calculate Next Version
+        id: version
+        run: |
+          NEW_TAG=$(svu next)
+          echo "tag=$NEW_TAG" >> $GITHUB_OUTPUT
+          echo "Next version : $NEW_TAG"
+
+      - name: Push Tag
+        run: |
+          git config user.name "Gitea Actions"
+          git config user.email "actions@gitea.local"
+          git tag ${{ steps.version.outputs.tag }}
+          git push origin ${{ steps.version.outputs.tag }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      # Create release and upload PDF
+      # Note: softprops works very well on recent Gitea
+      - name: Create Release
+        uses: softprops/action-gh-release@v1
+        if: ${{ steps.version.outputs.tag != '' }} # Safety check
+        with:
+          tag_name: ${{ steps.version.outputs.tag }}
+          name: Release ${{ steps.version.outputs.tag }}
+          files: PIS.pdf
+          draft: false
+          prerelease: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..5f99e88
--- /dev/null
+++ b/README.md
@@ -0,0 +1,99 @@
+---
+title: "GULAG"
+subtitle: "Guidelines & Unified Laws for Advanced Gitflow"
+---
+
+# General
+- Git history **has** to be kept linear. Branches **have** to be __rebased__ before being merged. 
+- Merge commit is stricly forbidden.
+- Force pushes are disallowed on shared branches unless discussed beforehand with affected people.
+
+# Branches
+Branch names *should* be prefixed by a type and the scope. For example:
+- `feat/nodes/sleep-mode`: implements a new feature
+- `fix/gateway/lost-messages`: fixes a bug or issue
+- `refactor/db/endpoints`: modifies the code structure without adding new features
+
+<!--pagebreak-->
+
+# Pull Requests
+- Branches **must** be merged into the main branch through a pull request.
+- Pull requests *should* be kept relatively short.
+- They **must** be reviewed by at least one other person. 
+- They **must** have a meaningful title, summarizing the features or fixes it contains, and can have a more in-depth description to help reviewers understand the contents
+- If a pull request is related to an existing issue or task, its description *should* contain its reference. For example:
+
+```
+fix(gateway): lost messages
+
+This PR fixes the dropping of incoming messages in the gateway during high-traffic bursts before they can be published to the MQTT broker.
+
+The internal buffer was too small (size 5). A slight increase to 15 solves the issue. 
+
+This PR also adds logging when the limits of 10 and 15 messages are reached, to help understand the root cause if the problem happens again.
+
+Fixes: #42
+```
+
+A branch that has been merged **must** be deleted.
+
+# Commits
+## Content
+- A commit *should* be an atomic change targeting only 1 specific subject.
+- Build artifacts, cache directories, large files, personal configuration, environment variables and secrets **must** not be committed.
+  If possible, such files *should* be added to `.gitignore` to avoid accidentally committing them.
+- External libraries, especially large packages, *should* either not be included in the repository (with installation steps), or integrated as Git [submodules](https://github.blog/open-source/git/working-with-submodules/).
+
+## Message
+Commit messages **must** follow the [conventional commit format](https://www.conventionalcommits.org/en/v1.0.0/).
+In short, commit messages **must** be structured as follows:
+
+```
+<type>(scope): <description>
+
+[optional body]
+
+[optional footer(s)]
+```
+
+The type element describes the content of the commit. The following values are accepted:
+- `fix`: patches a bug / issue
+- `feat`: introduces a new feature
+- `doc` or `docs`: only affects documentation
+- `chore`: small changes to the repository which do not directly affect code or documentation
+- `ci`: modifies CI/CD workflow configuration
+- `refactor`: modifies existing code without changing the results / features
+
+Some other types can be accepted but the above list should suffice in most cases.
+The description (or subject) should be kept short.
+An optional body can be added to provide more details.
+It *should* be written in the imperative present tense:
+- ✅️ add database schema
+- ❌ changed path resolution
+- ❌️ fixes rounding error
+
+The end of the body can contain special keywords to indicate that it completes a specific issue or task, for example:
+- Closes #42
+- Fixes #4
+- Resolves #38
+
+## Authors
+In cases where a commit is written by multiple people, footers **must** be added to indicate co-authors:
+
+```
+feat(nodes): implement sleep mode
+
+Co-Authored-By: John Doe <john.doe@example.com>
+```
+
+If a commit is partly written by an LLM, a footer tag `Assisted-by: AGENT_NAME:MODEL_VERSION` **must** be added, for example:
+
+```
+refactor(db): simplify endpoints routing
+
+Assisted-by: Claude:claude-3-opus
+```
+
+
+# Credits
+These guidelines are largely based on the [GitHub policy of the Duckify project](https://toys-r-us-rex.github.io/Duckify/architecture/github_policy.pdf)
diff --git a/darko.typ b/darko.typ
new file mode 100644
index 0000000..7d837a8
--- /dev/null
+++ b/darko.typ
@@ -0,0 +1,381 @@
+// Darko Template
+#import "@preview/cmarker:0.1.8"
+#import "@preview/mitex:0.2.6": mitex
+
+// Get system inputs
+#let filepath = sys.inputs.at("filepath", default: "input.md")
+#let language = sys.inputs.at("language", default: "en")
+#let show-toc = sys.inputs.at("toc", default: "false") == "true"
+
+// Front matter inputs
+#let has-frontmatter = sys.inputs.at("has_frontmatter", default: "false") == "true"
+#let fm-title = sys.inputs.at("fm_title", default: none)
+#let fm-subtitle = sys.inputs.at("fm_subtitle", default: none)
+#let fm-author = sys.inputs.at("fm_author", default: none)
+#let fm-date = sys.inputs.at("fm_date", default: none)
+#let fm-tags = sys.inputs.at("fm_tags", default: none)
+#let fm-version = sys.inputs.at("fm_version", default: none)
+#let fm-logo = sys.inputs.at("logo", default: none)
+#let fm-participants = sys.inputs.at("participants", default: none)
+
+// Dieter Rams color palette for dark theme
+#let rams-white = rgb("f7f8f6ff")      // Text color (whitish)
+#let rams-light-grey = rgb("d9d2c6ff")  // Light accents
+#let rams-dark-grey = rgb("4a4a4aff")   // Medium elements
+#let rams-black = rgb("1f1f1fff")       // Background (dark)
+#let rams-green = rgb("736b1eff")       // Accent color
+#let rams-brown = rgb("8b7355ff")       // Secondary accent
+#let rams-red = rgb("ed3f1cff")         // Highlight color
+#let rams-orange = rgb("ed8008ff")      // Warning/emphasis color
+
+// Parse tags from comma-separated string
+#let tags-list = if fm-tags != none { fm-tags.split(",") } else { () }
+#let participants-list = if fm-participants != none { fm-participants.split(",") } else { () }
+
+// Extract filename from filepath (remove path and .md extension)
+#let filename = {
+  let path-parts = filepath.split("/")
+  let file = path-parts.last()
+  if file.ends-with(".md") {
+    file.slice(0, file.len() - 3)
+  } else if file.ends-with(".temp.md") {
+    file.slice(0, file.len() - 8)
+  } else {
+    file
+  }
+}
+
+// Use front matter data or defaults
+#let document-author = if fm-author != none { fm-author } else { none }
+#let document-title = if fm-title != none { fm-title } else { filename }
+#let document-subtitle = if fm-subtitle != none { fm-subtitle } else { none }
+
+// Parse date
+#let document-date = if fm-date != none {
+  let date-str = fm-date
+  if date-str.len() == 10 and date-str.contains("-") {
+    let parts = date-str.split("-")
+    if parts.len() == 3 {
+      datetime(year: int(parts.at(0)), month: int(parts.at(1)), day: int(parts.at(2)))
+    } else {
+      datetime.today()
+    }
+  } else {
+    datetime.today()
+  }
+} else {
+  datetime.today()
+}
+
+// Set document properties
+#set document(
+  author: if document-author != none {document-author} else {""},
+  title: document-title,
+  keywords: if fm-tags != none { (if document-author != none {document-author} else {""}, if document-title != none {document-title} else {""}, "md-pdf", ..tags-list) } else { (if document-author != none {document-author} else {""}, if document-title != none {document-title} else {""}, "md-pdf") },
+  date: document-date
+)
+
+// Basic properties - dark background
+#set page(
+  margin: (top: 3cm, bottom: 3cm, left: 3cm, right: 2.5cm),
+  fill: rams-black
+)
+
+// Header and footer
+#set page(
+  header: context(if here().page() >= 2 [
+    #set text(9pt, fill: rams-light-grey)
+    #table(
+      columns: (80%, 20%),
+      stroke: none,
+      inset: -0.5em,
+      align: (x, y) => (left+bottom, right+top).at(x),
+      [#smallcaps[#document-title] #if document-subtitle != none {[| #smallcaps[#document-subtitle] ]}],
+      [#if fm-logo != none {[#v(1.2cm)#image(fm-logo,width:2cm)]}]
+    )
+    #if fm-logo != none {[
+      #line(start: (-0.5em, 0cm), length: 85%, stroke: (paint: rams-dark-grey, thickness: 0.5pt))
+    ]} else {[
+      #line(start: (-0.5em, 0cm), length: 101%, stroke: (paint: rams-dark-grey, thickness: 0.5pt))
+    ]}
+  ]),
+  footer: context(if here().page() >= 2 [
+    #line(length: 100%, stroke: (paint: rams-dark-grey, thickness: 0.5pt))
+    #set text(9pt, fill: rams-light-grey)
+    #v(0.2em)
+    #if document-author != none {[#document-author #h(1fr)]} #document-date.display() #h(1fr) #context counter(page).display("1 / 1", both: true)
+  ])
+)
+
+// Font & language - white text on dark background
+#set text(
+  font: ("Libertinus Serif", "Liberation Serif"),
+  fallback: true,
+  lang: language,
+  size: 11pt,
+  fill: rams-white
+)
+
+// Heading styling
+#show heading: set block(above: 1.2em, below: 1.2em)
+#set heading(numbering: "1.1")
+
+#show heading.where(level: 1): it => {
+  set text(size: 18pt, weight: "bold", fill: rams-white)
+  set block(above: 1.2em, below: 1.2em)
+  if it.numbering != none {
+    let num = numbering(it.numbering, ..counter(heading).at(it.location()))
+    block(
+      fill: rams-green.darken(20%),
+      inset: (x: 12pt, y: 8pt),
+      radius: 4pt,
+      width: 100%,
+      stroke: 1pt + rams-green
+    )[
+      #text(weight: "bold", fill: rams-white)[#num] #h(8pt) #it.body
+    ]
+  } else {
+    block(
+      fill: rams-green.darken(20%),
+      inset: (x: 12pt, y: 8pt),
+      radius: 4pt,
+      width: 100%,
+      stroke: 1pt + rams-green
+    )[
+      #it.body
+    ]
+  }
+}
+
+#show heading.where(level: 2): it => {
+  set text(size: 15pt, weight: "bold", fill: rams-orange)
+  set block(above: 1.3em, below: 0.9em)
+  if it.numbering != none {
+    let num = numbering(it.numbering, ..counter(heading).at(it.location()))
+    [#text(weight: "bold", fill: rams-orange)[#num] #h(6pt) #it.body]
+  } else {
+    [#it.body]
+  }
+  v(-7pt)
+  line(length: 70%, stroke: 2pt + rams-orange.lighten(20%))
+}
+
+#show heading.where(level: 3): it => {
+  set text(size: 13pt, weight: "semibold", fill: rams-brown)
+  if it.numbering != none {
+    let num = numbering(it.numbering, ..counter(heading).at(it.location()))
+    [#text(weight: "semibold", fill: rams-brown)[#num] #h(4pt) #it.body]
+  } else {
+    [#it.body]
+  }
+  v(-6pt)
+  line(length: 50%, stroke: 1pt + rams-brown.lighten(30%))
+}
+
+// Link color
+#show link: it => text(fill: rams-green.lighten(20%), weight: "medium", it)
+
+// Code blocks
+#show raw: set text(
+  font: ("Fira Code", "DejaVu Sans Mono"),
+  fallback: true
+)
+#show raw.where(block: false): it => {
+  box(
+    fill: rams-dark-grey.darken(40%),
+    inset: (x: 4pt, y: 2pt),
+    radius: 3pt,
+    stroke: 0.5pt + rams-dark-grey.darken(10%)
+  )[
+    #text(fill: rams-light-grey, weight: "medium", size: 9pt)[#it]
+  ]
+}
+#show raw.where(block: true): it => {
+  set text(size: 9pt, fill: rams-light-grey)
+  block(
+    fill: rams-dark-grey.darken(40%),
+    width: 100%,
+    inset: 12pt,
+    radius: 5pt,
+    stroke: 1pt + rams-dark-grey.darken(10%)
+  )[
+    #it
+  ]
+}
+
+// Lists
+#set list(indent: 1em, marker: ([•], [◦], [▪]))
+#set enum(indent: 1em)
+#show list: it => {
+  set text(fill: rams-white)
+  it
+}
+#show enum: it => {
+  set text(fill: rams-white)
+  it
+}
+
+// Emphasis
+#show emph: set text(style: "italic", fill: rams-light-grey, weight: "medium")
+#show strong: set text(weight: "bold", fill: rams-green.lighten(10%))
+
+// Quotes
+#show quote: it => {
+  set text(fill: rams-light-grey, style: "italic")
+  block(
+    fill: rams-dark-grey.lighten(5%),
+    inset: (left: 12pt, rest: 10pt),
+    radius: 4pt,
+    stroke: (left: 3pt + rams-orange, rest: 1pt + rams-dark-grey.lighten(20%))
+  )[#it]
+}
+
+// Table styling
+#show table: it => {
+  set text(size: 10pt, fill: rams-white)
+  set table(
+    stroke: 1pt + rams-dark-grey.lighten(30%),
+    fill: rams-dark-grey.lighten(10%)
+  )
+  it
+}
+
+// Figure captions
+#set figure(numbering: "1", supplement: [Figure])
+#set figure.caption(separator: " — ")
+#show figure.caption: it => {
+  set text(size: 9pt, style: "italic", fill: rams-light-grey)
+  block(
+    fill: rams-dark-grey.lighten(10%),
+    inset: 8pt,
+    width: 100%,
+    radius: 3pt,
+    stroke: 1pt + rams-dark-grey.lighten(30%)
+  )[
+    #it
+  ]
+}
+
+// Badge function with dark theme colors
+#let badge(content, index: 0) = {
+  let colors = (rams-green, rams-brown, rams-orange, rams-red)
+  let color = colors.at(calc.rem(index, colors.len()))
+  box(
+    inset: (x: 6pt, y: 3pt),
+    radius: 3pt,
+    fill: color.darken(30%),
+    stroke: (paint: color, thickness: 0.5pt)
+  )[
+    #text(weight: "medium", size: 8pt, fill: rams-white)[#content]
+  ]
+}
+
+// Show basic document metadata if front matter exists
+#if has-frontmatter [
+  #v(1em)
+  // title
+  #if fm-title != none [
+    #align(center)[
+      #text(size: 22pt, weight: "bold", fill: rams-white)[#fm-title]
+    ]
+    #v(0.5em)
+  ]
+  // subtitle
+  #if fm-subtitle != none [
+    #align(center)[
+      #text(size: 15pt, style: "italic", fill: rams-light-grey)[#fm-subtitle]
+    ]
+    #v(0.8em)
+  ]
+  // logo
+  #if fm-logo != none {[#figure(image(fm-logo,width:4cm))]}
+  // metadata (author, date, version)
+  #let metadata = ()
+  #if document-author != none { metadata.push(document-author) }
+  #if document-date != none { metadata.push(document-date.display()) }
+  #if fm-version != none { metadata.push(fm-version) }
+
+  #if metadata.len() > 0 [
+    #set text(11pt, fill: rams-light-grey)
+    #align(center)[
+      #for (i, data) in metadata.enumerate() [
+        #data
+        #if i < metadata.len() - 1 [ • ]
+      ]
+    ]
+    #v(0.8em)
+  ]
+
+  #if fm-tags != none and tags-list.len() > 0 or fm-participants != none and participants-list.len() > 0 [
+    #align(center)[#line(length: 90%, stroke: 1pt + rams-light-grey)]
+  ]
+  // tags
+  #if fm-tags != none and tags-list.len() > 0 [
+    #table(
+      columns: (20%, 80%),
+      align: (right+horizon, left+horizon),
+      stroke: none,
+      [#smallcaps[#text(fill: rams-light-grey)[
+        #if language == "de" {[
+          Tags
+        ]} else if language == "fr" {[
+          Balises
+        ]} else {[
+          Tags
+        ]}
+      ]]],
+      [
+        #for (i, tag) in tags-list.enumerate() [
+          #badge(tag.trim(), index: i)
+        ]
+      ]
+    )
+  ]
+  // participants
+  #if fm-participants != none and participants-list.len() > 0 [
+    #table(
+      columns: (20%, 80%),
+      align: (right+horizon, left+horizon),
+      stroke: none,
+      [#smallcaps[#text(fill: rams-light-grey)[
+        #if language == "de" {[
+          Teilnehmer
+        ]} else if language == "fr" {[
+          Participants
+        ]} else {[
+          Participants
+        ]}
+      ]]],
+      [
+        #for (i, participants) in participants-list.enumerate() [
+          #badge(participants.trim(), index: participants-list.len() - i - 1)
+        ]
+      ]
+    )
+  ]
+
+  // separator
+  #align(center)[#line(length: 90%, stroke: 1pt + rams-light-grey)]
+]
+
+// Table of contents
+#if show-toc [
+  #set text(fill: rams-light-grey, size: 16pt, weight: "bold")
+  [Contents]
+  #v(0.5em)
+  #line(length: 100%, stroke: 1pt + rams-green)
+  #v(0.5em)
+  #set text(weight: "medium", fill: rams-white, size: 10pt)
+  #show outline.entry: it => {
+    set text(fill: rams-light-grey)
+    it
+  }
+  #outline(indent: auto)
+  #pagebreak()
+]
+
+#cmarker.render(
+  read(filepath),
+  scope: (image: (path, alt: none) => image(path, alt: alt)),
+  math: mitex
+)
diff --git a/md-pdf.ron b/md-pdf.ron
new file mode 100644
index 0000000..599c7b2
--- /dev/null
+++ b/md-pdf.ron
@@ -0,0 +1,7 @@
+(
+    templates_dir: Some("./"),
+    default_template: Some("darko"),
+    default_language: Some("en"),
+    default_toc: Some(false),
+    default_author: Some("Rémi Heredero"),
+)