MongoDB Source Connector E2E Harness
airbytehq/airbyte
Starts a throwaway MongoDB 7.0 replica set and runs the Airbyte spec, check, discover and read commands against source-mongodb-v2 images for local end-to-end testing.
Printing Press CLI for Airbyte Admin. An agent skill from mvanhorn/printing-press-library.
$ npx skills add mvanhorn/printing-press-library --skill pp-airbyte-admin -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mvanhorn/printing-press-library pp-airbyte-admin --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cli-skills/pp-airbyte-admin .claude/skills/pp-airbyte-admin && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "pp-airbyte-admin" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-airbyte-admin into .claude/skills/pp-airbyte-admin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-airbyte-admin", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-airbyte-adminType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add mvanhorn/printing-press-library --skill pp-airbyte-admin -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mvanhorn/printing-press-library pp-airbyte-admin --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .agents/skills && cp -r skills-src/cli-skills/pp-airbyte-admin .agents/skills/pp-airbyte-admin && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "pp-airbyte-admin" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-airbyte-admin into .agents/skills/pp-airbyte-admin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-airbyte-admin", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mvanhorn/printing-press-library --skill pp-airbyte-admin -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mvanhorn/printing-press-library pp-airbyte-admin --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/cli-skills/pp-airbyte-admin .cursor/skills/pp-airbyte-admin && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "pp-airbyte-admin" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-airbyte-admin into .cursor/skills/pp-airbyte-admin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-airbyte-admin", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/mvanhorn/printing-press-library.git --path cli-skills/pp-airbyte-admin--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add mvanhorn/printing-press-library --skill pp-airbyte-admin -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mvanhorn/printing-press-library pp-airbyte-admin --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/cli-skills/pp-airbyte-admin .gemini/skills/pp-airbyte-admin && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "pp-airbyte-admin" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-airbyte-admin into .gemini/skills/pp-airbyte-admin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-airbyte-admin", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install mvanhorn/printing-press-library pp-airbyte-adminInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add mvanhorn/printing-press-library --skill pp-airbyte-admin -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .github/skills && cp -r skills-src/cli-skills/pp-airbyte-admin .github/skills/pp-airbyte-admin && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "pp-airbyte-admin" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-airbyte-admin into .github/skills/pp-airbyte-admin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-airbyte-admin", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mvanhorn/printing-press-library --skill pp-airbyte-admin -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mvanhorn/printing-press-library pp-airbyte-admin --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/cli-skills/pp-airbyte-admin .opencode/skills/pp-airbyte-admin && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "pp-airbyte-admin" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-airbyte-admin into .opencode/skills/pp-airbyte-admin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-airbyte-admin", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
pp-airbyte-adminPrinting Press CLI for Airbyte Admin. An agent skill from mvanhorn/printing-press-library.
Pp Airbyte Admin is an agent skill from mvanhorn/printing-press-library. Printing Press CLI for Airbyte Admin. Inspect Airbyte workspaces, sources, destinations, connections, jobs, connector definitions, users, organizations, permissions, and tags.
Its SKILL.md is about 2.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with Airbyte. The repository describes itself as: Official library of CLIs generated by the CLI Printing Press. Endorsed, tested, and community-contributed. The licence is Apache-2.0.
3 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 0fdcc7a. It shows what the files ask for, not the result of running them.
Pre-approves these tools, so the agent can use them without asking each time:
ReadBashFrom allowed-tools in the SKILL.md frontmatter.
Shell commands in SKILL.md call:
goclaudenpxFrom the folder's file list and the shell code blocks in SKILL.md.
Hosts in commands or code, which the agent is likely to contact:
cloud.airbyte.comFrom URLs in SKILL.md, links to its own repository left out.
Names these keys or tokens, usually read from environment variables:
AIRBYTE_ADMIN_TOKENFrom names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Pp Airbyte Admin loads about 2.7k tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 1,089 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check noted patterns worth knowing about, such as sudo or a known installer.
allowed-tools: Read, BashAutomated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from mvanhorn/printing-press-library at commit 0fdcc7a, republished under its Apache-2.0 licence (© mvanhorn). 1,089 words, ~2,732 tokens.
.claude/skills/pp-airbyte-admin/SKILL.md (or your agent's skills folder).<!-- GENERATED FILE — DO NOT EDIT.
This file is a verbatim mirror of library/cloud/airbyte-admin/SKILL.md,
regenerated post-merge by tools/generate-skills/. Hand-edits here are
silently overwritten on the next regen. Edit the library/ source instead.
See the repository agent guide, section "Generated artifacts: registry.json, cli-skills/". -->
This skill drives the airbyte-admin-pp-cli binary. You must verify the CLI is installed before invoking any command from this skill. If it is missing, install it first:
npx -y @mvanhorn/printing-press-library install airbyte-admin --cli-onlyairbyte-admin-pp-cli --version$GOPATH/bin (or $HOME/go/bin) is on $PATH.If the npx install fails (no Node, offline, etc.), fall back to a direct Go install (requires Go 1.26.6 or newer):
go install github.com/mvanhorn/printing-press-library/library/cloud/airbyte-admin/cmd/airbyte-admin-pp-cli@latestIf --version reports "command not found" after install, the install step did not put the binary on $PATH. Do not proceed with skill commands until verification succeeds.
Airbyte is a data integration platform used by data teams to move data from sources into warehouses, lakes, and operational destinations. This CLI exposes Airbyte's official Public API as a read-only terminal and MCP surface for inspecting pipeline inventory, sync jobs, connector metadata, workspaces, users, organizations, permissions, and tags.
Use it when an engineer or agent needs to answer operational questions such as "which sources and destinations are configured?", "what does this connection look like?", "which jobs are failing or running?", or "what workspaces and permissions can this account see?"
Do not activate this CLI for requests that require creating, updating, deleting, publishing, commenting, upvoting, inviting, ordering, sending messages, booking, purchasing, or changing remote state. This printed CLI exposes read-only commands for inspection, export, sync, and analysis.
These capabilities aren't available in any other tool for this API.
public list-sources — Lists Airbyte sources, with sibling destination and connection-detail commands for inspecting configured data movement.public list-jobs — Lists sync jobs with connection filters and pagination for troubleshooting recent ELT activity.public list-connector-definitions — Shows available source or destination connector definitions for a workspace or organization.public list-workspaces — Surfaces workspaces, users, organizations, permissions, and tags for Airbyte operational review.sync — Caches Airbyte read endpoints locally for offline search, export, and repeatable agent analysis.public — Manage public
airbyte-admin-pp-cli public get-application — Get an Application detailairbyte-admin-pp-cli public get-connection — Get Connection detailsairbyte-admin-pp-cli public get-destination — Get Destination detailsairbyte-admin-pp-cli public get-documentation — Root path, currently returns a redirect to the documentationairbyte-admin-pp-cli public get-health-check — Health Checkairbyte-admin-pp-cli public get-job — Get Job status and detailsairbyte-admin-pp-cli public get-source — Get Source detailsairbyte-admin-pp-cli public get-stream-properties — Get stream propertiesairbyte-admin-pp-cli public list-applications — List Applicationsairbyte-admin-pp-cli public list-connector-definitions — List connector definitionsairbyte-admin-pp-cli public list-destinations — List destinationsairbyte-admin-pp-cli public list-jobs — List Jobsairbyte-admin-pp-cli public list-organizations-for-user — List all organizations for a userairbyte-admin-pp-cli public list-permissions — List permissionsairbyte-admin-pp-cli public list-sources — List sourcesairbyte-admin-pp-cli public list-tags — Lists all tagsairbyte-admin-pp-cli public list-users — Organization Admin user can list all users within the same organization.airbyte-admin-pp-cli public list-workspaces — List workspacesairbyte-admin-pp-cli public oauth-callback — Redirected to by identity providers after authentication.When you know what you want to do but not which command does it, ask the CLI directly:
airbyte-admin-pp-cli which "<capability in your own words>"which resolves a natural-language capability query to the best matching command from this CLI's curated feature index. Exit code 0 means at least one match; exit code 2 means no confident match — fall back to --help or use a narrower query.
The health endpoint is public, but most Airbyte Cloud and self-managed Public API commands require an Authorization header. Do not store credentials in GitHub or in prompts.
Preferred environment variables:
export AIRBYTE_ADMIN_BASE_URL="https://cloud.airbyte.com/api"
export AIRBYTE_ADMIN_TOKEN="<airbyte-token>"For local self-managed Airbyte or deployments that need a complete header:
export AIRBYTE_ADMIN_BASE_URL="http://localhost:8000/api"
export AIRBYTE_ADMIN_AUTH_HEADER="Basic <base64-user-pass>"AIRBYTE_ADMIN_TOKEN is converted to Bearer <token> unless it already starts with Bearer . AIRBYTE_ADMIN_AUTH_HEADER wins when both are set.
Run airbyte-admin-pp-cli doctor to verify setup.
Add --agent to any command. Expands to: --json --compact --no-input --no-color --yes.
Pipeable — JSON on stdout, errors on stderr
Filterable — --select keeps a subset of fields. Dotted paths descend into nested structures; arrays traverse element-wise. Critical for keeping context small on verbose APIs:
airbyte-admin-pp-cli public list-sources --agent --select id,name,statusPreviewable — --dry-run shows the request without sending
Offline-friendly — sync/search commands can use the local SQLite store when available
Non-interactive — never prompts, every input is a flag
Read-only — do not use this CLI for create, update, delete, publish, comment, upvote, invite, order, send, or other mutating requests
Commands that read from the local store or the API wrap output in a provenance envelope:
{
"meta": {"source": "live" | "local", "synced_at": "...", "reason": "..."},
"results": <data>
}Parse .results for data and .meta.source to know whether it's live or local. A human-readable N results (live) summary is printed to stderr only when stdout is a terminal AND no machine-format flag (--json, --csv, --compact, --quiet, --plain, --select) is set — piped/agent consumers and explicit-format runs get pure JSON on stdout.
When you (or the agent) notice something off about this CLI, record it:
airbyte-admin-pp-cli feedback "the --since flag is inclusive but docs say exclusive"
airbyte-admin-pp-cli feedback --stdin < notes.txt
airbyte-admin-pp-cli feedback list --json --limit 10Entries are stored locally at ~/.local/share/airbyte-admin-pp-cli/feedback.jsonl. They are never POSTed unless AIRBYTE_ADMIN_FEEDBACK_ENDPOINT is set AND either --send is passed or AIRBYTE_ADMIN_FEEDBACK_AUTO_SEND=true. Default behavior is local-only.
Write what surprised you, not a bug report. Short, specific, one line: that is the part that compounds.
Every command accepts --deliver <sink>. The output goes to the named sink in addition to (or instead of) stdout, so agents can route command results without hand-piping. Three sinks are supported:
| Sink | Effect |
|---|---|
stdout | Default; write to stdout only |
file:<path> | Atomically write output to <path> (tmp + rename) |
webhook:<url> | POST the output body to the URL (application/json or application/x-ndjson when --compact) |
Unknown schemes are refused with a structured error naming the supported set. Webhook failures return non-zero and log the URL + HTTP status on stderr.
A profile is a saved set of flag values, reused across invocations. Use it when a scheduled agent calls the same command every run with the same configuration - HeyGen's "Beacon" pattern.
airbyte-admin-pp-cli profile save briefing --json
airbyte-admin-pp-cli --profile briefing public list-sources
airbyte-admin-pp-cli profile list --json
airbyte-admin-pp-cli profile show briefing
airbyte-admin-pp-cli profile delete briefing --yesExplicit flags always win over profile values; profile values win over defaults. agent-context lists all available profiles under available_profiles so introspecting agents discover them at runtime.
| Code | Meaning |
|---|---|
| 0 | Success |
| 2 | Usage error (wrong arguments) |
| 3 | Resource not found |
| 5 | API error (upstream issue) |
| 7 | Rate limited (wait and retry) |
| 10 | Config error |
Parse $ARGUMENTS:
help, or --help → show airbyte-admin-pp-cli --help outputinstall → ends with mcp → MCP installation; otherwise → see Prerequisites above--agent)go install github.com/mvanhorn/printing-press-library/library/cloud/airbyte-admin/cmd/airbyte-admin-pp-mcp@latestclaude mcp add airbyte-admin-pp-mcp -- airbyte-admin-pp-mcpclaude mcp listwhich airbyte-admin-pp-cli
If not found, offer to install (see Prerequisites at the top of this skill).--agent flag:airbyte-admin-pp-cli <command> [subcommand] [args] --agentairbyte-admin-pp-cli <command> --help.© mvanhorn, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in cli-skills/pp-airbyte-admin of mvanhorn/printing-press-library.
Open the folder on GitHubat commit 0fdcc7a
Pp Airbyte Admin next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Pp Airbyte Admin this skillmvanhorn/printing-press-library | 2.1k | — | ~2.7k | Automated safety check: Notes | Apache-2.0 | |
| MongoDB Source Connector E2E Harnessairbytehq/airbyte | 22k | — | ~1.9k | Automated safety check: Pass | Custom licence | |
| source-mssql E2E Test Harnessairbytehq/airbyte | 22k | — | ~4.4k | Automated safety check: Pass | Custom licence | |
| Airbyte source-mysql E2E Testsairbytehq/airbyte | 22k | — | ~2.6k | Automated safety check: Pass | Custom licence | |
| Airbyte Postgres Source E2E Testsairbytehq/airbyte | 22k | — | ~2.5k | Automated safety check: Pass | Custom licence | |
| Source Snowflake E2E Testsairbytehq/airbyte | 22k | — | ~918 | Automated safety check: Pass | Custom licence |
airbytehq/airbyte
Starts a throwaway MongoDB 7.0 replica set and runs the Airbyte spec, check, discover and read commands against source-mongodb-v2 images for local end-to-end testing.
airbytehq/airbyte
Stands up a throwaway local SQL Server 2022 backend, applies SQL fixtures and runs Airbyte spec, check, discover and read against source-mssql images.
airbytehq/airbyte
Stands up a throwaway local MySQL 8.0 backend, applies SQL fixtures and sweeps the Airbyte spec, check, discover and read commands against a source-mysql image.
airbytehq/airbyte
Starts a local PostgreSQL 16 container, loads SQL fixtures and runs the Airbyte spec, check, discover and read commands against a chosen source-postgres image.
airbytehq/airbyte
Runs the Airbyte protocol sweep for a source-snowflake image against the shared Snowflake integration account, in an isolated per-run schema.
airbytehq/airbyte
Reproduces change-data-capture bugs in the source-mssql Airbyte connector by enabling CDC on a local SQL Server backend and replaying per-bug SQL fixtures.
mvanhorn/printing-press-library
Desktop automation through the real Rust agent-desktop CLI, published in Printing Press through a small bridge.
mvanhorn/printing-press-library
Search, browse, and download Google Fonts from the terminal via the gfonts CLI.
mvanhorn/printing-press-library
The free, offline Trigger phrases: search 1688 for, find a factory on 1688 for, wholesale price on 1688 for, who is the cheapest supplier on 1688 for, compare 1688 suppliers for, use 1688, run 1688.
mvanhorn/printing-press-library
Inspect known Activity Japan plan IDs or URLs, compare dated prices and sessions, check language-sitemap coverage, and hand off to canonical booking pages.
mvanhorn/printing-press-library
Every Admin By Request portal action, plus a local SQLite mirror of audit, events, inventory and requests for ad-hoc...
mvanhorn/printing-press-library
macOS screen capture, window recording, GIF conversion, and agent evidence bundles from the terminal.
Works with
Printing Press CLI for Airbyte Admin. An agent skill from mvanhorn/printing-press-library. Pp Airbyte Admin is an agent skill from mvanhorn/printing-press-library. Printing Press CLI for Airbyte Admin.
Run `npx skills add mvanhorn/printing-press-library --skill pp-airbyte-admin -a claude-code`. Or copy the skill folder (cli-skills/pp-airbyte-admin in mvanhorn/printing-press-library) into .claude/skills/pp-airbyte-admin in your project. Claude Code loads it when a task matches its description.
Run `npx skills add mvanhorn/printing-press-library --skill pp-airbyte-admin -a codex`. Or copy the skill folder (cli-skills/pp-airbyte-admin in mvanhorn/printing-press-library) into .agents/skills/pp-airbyte-admin in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mvanhorn/printing-press-library --skill pp-airbyte-admin -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/pp-airbyte-admin, .gemini/skills/pp-airbyte-admin, .github/skills/pp-airbyte-admin and .opencode/skills/pp-airbyte-admin in your project.
Going by SKILL.md and its folder, Pp Airbyte Admin needs the command-line tools its instructions call (go, claude and npx) and credentials named AIRBYTE_ADMIN_TOKEN. Our summary lists: Node.js; A credential in AIRBYTE_ADMIN_TOKEN. Its frontmatter pre-approves these tools: Read, Bash.
SKILL.md names 1 domain. In commands or code: cloud.airbyte.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
Pp Airbyte Admin is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
About 2.7k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Pp Airbyte Admin: MongoDB Source Connector E2E Harness (airbytehq/airbyte, 22k stars), source-mssql E2E Test Harness (airbytehq/airbyte, 22k stars), Airbyte source-mysql E2E Tests (airbytehq/airbyte, 22k stars) and Airbyte Postgres Source E2E Tests (airbytehq/airbyte, 22k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
mvanhorn (a GitHub user) maintains it in mvanhorn/printing-press-library, which has 2,053 GitHub stars. The repository holds 505 skills in this directory. The repository was last updated on October 7, 2026.
Source: mvanhorn/printing-press-library on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.