diff --git a/doc/talks/2025-10-06-josy/.gitignore b/doc/talks/2025-10-06-josy/.gitignore new file mode 100644 index 00000000..9f1f00e6 --- /dev/null +++ b/doc/talks/2025-10-06-josy/.gitignore @@ -0,0 +1,17 @@ +* + +!*.txt +!*.md + +!assets + +!.gitignore +!*.svg +!*.png +!*.jpg +!*.tex +!Makefile +!.gitignore +!assets/*.drawio.pdf + +!talk.pdf diff --git a/doc/talks/2025-10-06-josy/Makefile b/doc/talks/2025-10-06-josy/Makefile new file mode 100644 index 00000000..f0aae6a8 --- /dev/null +++ b/doc/talks/2025-10-06-josy/Makefile @@ -0,0 +1,19 @@ +ASSETS=../assets/lattice/lattice1.pdf_tex \ + ../assets/lattice/lattice2.pdf_tex \ + ../assets/lattice/lattice3.pdf_tex \ + ../assets/lattice/lattice4.pdf_tex \ + ../assets/lattice/lattice5.pdf_tex \ + ../assets/lattice/lattice6.pdf_tex \ + ../assets/lattice/lattice7.pdf_tex \ + ../assets/lattice/lattice8.pdf_tex \ + ../assets/logos/deuxfleurs.pdf \ + ../assets/timeline-22-24.pdf + +talk.pdf: talk.tex $(ASSETS) + pdflatex talk.tex + +%.pdf: %.svg + inkscape -D -z --file=$^ --export-pdf=$@ + +%.pdf_tex: %.svg + inkscape -D -z --file=$^ --export-pdf=$@ --export-latex diff --git a/doc/talks/2025-10-06-josy/talk.pdf b/doc/talks/2025-10-06-josy/talk.pdf new file mode 100644 index 00000000..2194908a Binary files /dev/null and b/doc/talks/2025-10-06-josy/talk.pdf differ diff --git a/doc/talks/2025-10-06-josy/talk.tex b/doc/talks/2025-10-06-josy/talk.tex new file mode 100644 index 00000000..aa483766 --- /dev/null +++ b/doc/talks/2025-10-06-josy/talk.tex @@ -0,0 +1,702 @@ +\nonstopmode +\documentclass[aspectratio=169,xcolor={svgnames}]{beamer} +\usepackage[utf8]{inputenc} +% \usepackage[frenchb]{babel} +\usepackage{amsmath} +\usepackage{mathtools} +\usepackage{breqn} +\usepackage{multirow} +\usetheme{boxes} +\usepackage{graphicx} +\usepackage{import} +\usepackage{adjustbox} +\usepackage[absolute,overlay]{textpos} +%\useoutertheme[footline=authortitle,subsection=false]{miniframes} +%\useoutertheme[footline=authorinstitute,subsection=false]{miniframes} +\useoutertheme{infolines} +\setbeamertemplate{headline}{} + +\beamertemplatenavigationsymbolsempty + +\definecolor{TitleOrange}{RGB}{255,137,0} +\setbeamercolor{title}{fg=TitleOrange} +\setbeamercolor{frametitle}{fg=TitleOrange} + +\definecolor{ListOrange}{RGB}{255,145,5} +\setbeamertemplate{itemize item}{\color{ListOrange}$\blacktriangleright$} + +\definecolor{verygrey}{RGB}{70,70,70} +\setbeamercolor{normal text}{fg=verygrey} + + +\usepackage{tabu} +\usepackage{multicol} +\usepackage{vwcol} +\usepackage{stmaryrd} +\usepackage{graphicx} + +\usepackage[normalem]{ulem} + +\AtBeginSection[]{ + \begin{frame} + \vfill + \centering + \begin{beamercolorbox}[sep=8pt,center,shadow=true,rounded=true]{title} + \usebeamerfont{title}\insertsectionhead\par% + \end{beamercolorbox} + \vfill + \end{frame} +} + +\title{Garage, an S3 backend as reliable as possible} +\author{Garage Authors} +\date{JoSy S3, 2025-10-08} + +\begin{document} + +\begin{frame} + \centering + \includegraphics[width=.3\linewidth]{../../sticker/Garage.png} + \vspace{1em} + + {\large\bf Garage, an S3 backend as reliable as possible} + \vspace{1em} + + \url{https://garagehq.deuxfleurs.fr/}\\ + \url{mailto:garagehq@deuxfleurs.fr}\\ + \texttt{\#garage:deuxfleurs.fr} on Matrix +\end{frame} + + +\section{Meet Garage} + +\begin{frame} + \frametitle{A non-profit initiative} + + + \begin{columns}[t] + \begin{column}{.2\textwidth} + \centering + \adjincludegraphics[width=.5\linewidth, valign=t]{../assets/logos/deuxfleurs.pdf} + \end{column} + \begin{column}{.8\textwidth} + \textbf{Part of a degrowth initiative}\\ + Garage has been created at Deuxfleurs where we experiment running Internet services without datacenter on commodity and refurbished hardware. + \end{column} + + \end{columns} + \vspace{2em} + \begin{columns}[t] + \begin{column}{.2\textwidth} + \centering + \adjincludegraphics[width=.5\linewidth, valign=t]{../assets/community.png} + \end{column} + \begin{column}{.8\textwidth} + \textbf{Developed by a community}\\ + {\small Some recent contributors: Arthur C, Charles H, dongdigua, Etienne L, Jonah A, Julien K, Lapineige, MagicRR, Milas B, Niklas M, RockWolf, Schwitzd, trinity-1686a, Xavier S, babykart, Baptiste J, eddster2309, James O'C, Joker9944, Maximilien R, Renjaya RZ, Yureka...} + \end{column} + + \end{columns} + \vspace{2em} + \begin{columns}[t] + \begin{column}{.2\textwidth} + \centering + \adjincludegraphics[width=.5\linewidth, valign=t]{../assets/logos/AGPLv3_Logo.png} + \end{column} + \begin{column}{.8\textwidth} + \textbf{Owned by nobody, open-core is impossible, zero VC money}\\ + AGPL + no Contributor License Agreement = Garage ownership spreads among hundredth of contributors. + \end{column} + + \end{columns} +\end{frame} + +\begin{frame} + \frametitle{Getting support for Garage} + \begin{columns}[t] + \begin{column}{.2\textwidth} + \centering + \adjincludegraphics[width=.4\linewidth, valign=t]{../assets/alex.jpg} + \end{column} + \begin{column}{.4\textwidth} + \textbf{Alex Auvolat}\\ + PhD; co-founder of Deuxfleurs\\ + Garage maintainer, Freelance + \end{column} + \begin{column}{.3\textwidth} + \centering + \adjincludegraphics[width=.4\linewidth, valign=t]{../assets/support.png} + \end{column} + \begin{column}{.1\textwidth} + ~ + \end{column} + \end{columns} + \vspace{2em} + \begin{columns}[t] + \begin{column}{.2\textwidth} + \centering + \adjincludegraphics[width=.4\linewidth, valign=t]{../assets/quentin.jpg} + \end{column} + \begin{column}{.4\textwidth} + \textbf{Quentin Dufour}\\ + PhD; co-founder of Deuxfleurs\\ + Garage contributor, Freelance + \end{column} + \begin{column}{.4\textwidth} + For support requests, write at: \\ + \url{garagehq@deuxfleurs.fr} + \end{column} + \end{columns} + \vspace{2em} + \begin{columns}[t] + \begin{column}{.2\textwidth} + \centering + \adjincludegraphics[width=.4\linewidth, valign=t]{../assets/armael.jpg} + \end{column} + \begin{column}{.4\textwidth} + \textbf{Armaël Guéneau}\\ + PhD; member of Deuxfleurs\\ + Garage contributor, Freelance + \end{column} + \begin{column}{.4\textwidth} + Eligible: email support, architecture design, specific feature development, etc. + \end{column} + \end{columns} + + +\end{frame} + +\begin{frame} + \frametitle{Our initial goal} + + \centering + \Large + + Being a self-sovereign community to be free of our degrowth choice + + $\big\downarrow$ + + As web citizens, datacenters are big black boxes. \\ + We want to leave them to autonoumously manage our servers. + + $\big\downarrow$ + + We want reliable services without relying on dedicated hardware or places. + +\end{frame} + +\begin{frame} + \frametitle{Building a resilient system with cheap stuff} + + \only<1,4-7>{ + \begin{itemize} + \item \textcolor<5->{gray}{Commodity hardware (e.g. old desktop PCs)\\ + \vspace{.5em} + \visible<4->{{\footnotesize (can die at any time)}}} + \vspace{1.5em} + \item<5-> \textcolor<7->{gray}{Regular Internet (e.g. FTTB, FTTH) and power grid connections\\ + \vspace{.5em} + \visible<6->{{\footnotesize (can be unavailable randomly)}}} + \vspace{1.5em} + \item<7-> \textbf{Geographical redundancy} (multi-site replication) + \end{itemize} + } + \only<2>{ + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/neptune.jpg} + \end{center} + } + \only<3>{ + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/atuin.jpg} + \end{center} + } + \only<8>{ + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/inframap_jdll2023.pdf} + \end{center} + } +\end{frame} + +\begin{frame} + \frametitle{Object storage: a crucial component} + \begin{center} + \includegraphics[height=6em]{../assets/logos/Amazon-S3.jpg} + \hspace{3em} + \visible<2->{\includegraphics[height=5em]{../assets/logos/minio.png}} + \hspace{3em} + \visible<3>{\includegraphics[height=6em]{../../logo/garage_hires_crop.png}} + \end{center} + \vspace{1em} + S3: a de-facto standard, many compatible applications + + \vspace{1em} + \visible<2->{MinIO is self-hostable but not suited for geo-distributed deployments} + + \vspace{1em} + \visible<3->{\textbf{Garage is a self-hosted drop-in replacement for the Amazon S3 object store}} +\end{frame} + +\begin{frame} + \frametitle{CRDTs / weak consistency instead of consensus} + + \underline{Internally, Garage uses only CRDTs} (conflict-free replicated data types) + + \vspace{2em} + Why not Raft, Paxos, ...? Issues of consensus algorithms: + + \vspace{1em} + \begin{itemize} + \item<2-> \textbf{Software complexity} + \vspace{1em} + \item<3-> \textbf{Performance issues:} + \vspace{.5em} + \begin{itemize} + \item<4-> The leader is a \textbf{bottleneck} for all requests\\ + \vspace{.5em} + \item<5-> \textbf{Sensitive to higher latency} between nodes + \vspace{.5em} + \item<6-> \textbf{Takes time to reconverge} when disrupted (e.g. node going down) + \end{itemize} + \end{itemize} +\end{frame} + +\begin{frame} + \frametitle{The data model of object storage} + Object storage is basically a \textbf{key-value store}: + \vspace{.5em} + + {\scriptsize + \begin{center} + \begin{tabular}{|l|p{7cm}|} + \hline + \textbf{Key: file path + name} & \textbf{Value: file data + metadata} \\ + \hline + \hline + \texttt{index.html} & + \texttt{Content-Type: text/html; charset=utf-8} \newline + \texttt{Content-Length: 24929} \newline + \texttt{} \\ + \hline + \texttt{img/logo.svg} & + \texttt{Content-Type: text/svg+xml} \newline + \texttt{Content-Length: 13429} \newline + \texttt{} \\ + \hline + \texttt{download/index.html} & + \texttt{Content-Type: text/html; charset=utf-8} \newline + \texttt{Content-Length: 26563} \newline + \texttt{} \\ + \hline + \end{tabular} + \end{center} + } + + \vspace{1em} + \begin{itemize} + \item<2> Maps well to CRDT data types + \end{itemize} +\end{frame} + +\begin{frame} + \frametitle{Performance gains in practice} + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/perf/endpoint_latency_0.7_0.8_minio.png} + \end{center} +\end{frame} + +% ======================================== OPERATING +% ======================================== OPERATING +% ======================================== OPERATING + + +\section{Production clusters} + +\begin{frame} + \frametitle{Deployment kinds} + + \includegraphics[width=.9\linewidth]{../assets/cluster_kind.png} + \vspace{1em} + +\end{frame} + +\begin{frame} + \frametitle{How big they are?} + + \includegraphics[width=.9\linewidth]{../assets/cluster_size.png} + \vspace{1em} + + \textit{"Petabyte storage setup for a video site. Nginx as CDN in-front using garage-s3-website feature. Each storage node has ~64TB storage with raid10, no replication within garage. 25gbit nic. haproxy to loadbalance across 5 nodes. mostly reads with very few writes."} + + \vspace{1em} + \textit{"We currently manage 7 Garage nodes, 28TB total storage, 6M blocks for 3M objects and 4TB of object data. We have been running Garage in production for 2.5 years."} + +\end{frame} + +\begin{frame} + \frametitle{Operating Garage} + \begin{center} + \only<1-2>{ + \includegraphics[width=.9\linewidth]{../assets/screenshots/garage_status_0.10.png} + \\\vspace{1em} + \visible<2>{\includegraphics[width=.9\linewidth]{../assets/screenshots/garage_status_unhealthy_0.10.png}} + } + \end{center} +\end{frame} + +\begin{frame} + \frametitle{Garage's architecture} + \begin{center} + \only<1>{\includegraphics[width=.45\linewidth]{../assets/garage.drawio.pdf}}% + \only<2>{\includegraphics[width=.6\linewidth]{../assets/garage_sync.drawio.pdf}}% + \end{center} +\end{frame} + +\begin{frame} + \frametitle{Digging deeper} + \begin{center} + \only<1>{\includegraphics[width=.9\linewidth]{../assets/screenshots/garage_stats_0.10.png}} + \only<2>{\includegraphics[width=.5\linewidth]{../assets/screenshots/garage_worker_list_0.10.png}} + \only<3>{\includegraphics[width=.6\linewidth]{../assets/screenshots/garage_worker_param_0.10.png}} + \end{center} +\end{frame} + +\begin{frame} + \frametitle{Potential limitations and bottlenecks} + \begin{itemize} + \item Global: + \begin{itemize} + \item Max. $\sim$100 nodes per cluster (excluding gateways) + \end{itemize} + \vspace{1em} + \item Metadata: + \begin{itemize} + \item One big bucket = bottleneck, object list on 3 nodes only + \end{itemize} + \vspace{1em} + \item Block manager: + \begin{itemize} + \item Lots of small files on disk + \item Processing the resync queue can be slow + \end{itemize} + \end{itemize} +\end{frame} + +\begin{frame} + \frametitle{Deployment advice for very large clusters} + \begin{itemize} + \item Metadata storage: + \begin{itemize} + \item ZFS mirror (x2) on fast NVMe + \item Use LMDB storage engine + \end{itemize} + \vspace{.5em} + \item Data block storage: + \begin{itemize} + \item Use Garage's native multi-HDD support + \item XFS on individual drives + \item Increase block size (1MB $\to$ 10MB, requires more RAM and good networking) + \item Tune \texttt{resync-tranquility} and \texttt{resync-worker-count} dynamically + \end{itemize} + \vspace{.5em} + \item Other : + \begin{itemize} + \item Split data over several buckets + \item Use less than 100 storage nodes + \item Use gateway nodes + \end{itemize} + \vspace{.5em} + \end{itemize} +\end{frame} + + +\begin{frame} + \frametitle{Focus on Deuxfleurs} + + Host institutional websites, partnership with a web agency. + Matrix media backend. + + Plan to use it as an email backend for an internally developed email server. + +\end{frame} + + +% ======================================== TIMELINE +% ======================================== TIMELINE +% ======================================== TIMELINE + +\section{Recent developments} + +% ====================== v0.7.0 =============================== + +\begin{frame} + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/tl.drawio.png} + \end{center} +\end{frame} + +\begin{frame} + \frametitle{April 2022 - Garage v0.7.0} + Focus on \underline{observability and ecosystem integration} + \vspace{2em} + \begin{itemize} + \item \textbf{Monitoring:} metrics and traces, using OpenTelemetry + \vspace{1em} + \item Replication modes with 1 or 2 copies / weaker consistency + \vspace{1em} + \item Kubernetes integration for node discovery + \vspace{1em} + \item Admin API (v0.7.2) + \end{itemize} +\end{frame} + +\begin{frame} + \frametitle{Metrics (Prometheus + Grafana)} + \begin{center} + \includegraphics[width=.9\linewidth]{../assets/screenshots/grafana_dashboard.png} + \end{center} +\end{frame} + +\begin{frame} + \frametitle{Traces (Jaeger)} + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/screenshots/jaeger_listobjects.png} + \end{center} +\end{frame} + +% ====================== v0.8.0 =============================== + +\begin{frame} + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/tl.drawio.png} + \end{center} +\end{frame} + +\begin{frame} + \frametitle{November 2022 - Garage v0.8.0} + Focus on \underline{performance} + \vspace{2em} + \begin{itemize} + \item \textbf{Alternative metadata DB engines} (LMDB, Sqlite) + \vspace{1em} + \item \textbf{Performance improvements:} block streaming, various optimizations... + \vspace{1em} + \item Bucket quotas (max size, max \#objects) + \vspace{1em} + \item Quality of life improvements, observability, etc. + \end{itemize} +\end{frame} + +\begin{frame} + \frametitle{About metadata DB engines} + \textbf{Issues with Sled:} + \vspace{1em} + \begin{itemize} + \item Huge files on disk + \vspace{.5em} + \item Unpredictable performance, especially on HDD + \vspace{.5em} + \item API limitations + \vspace{.5em} + \item Not actively maintained + \end{itemize} + + \vspace{2em} + \textbf{LMDB:} very stable, good performance, file size is reasonable\\ + \textbf{Sqlite} also available as a second choice + + \vspace{1em} + Sled will be removed in Garage v1.0 +\end{frame} + +\begin{frame} + \frametitle{DB engine performance comparison} + \begin{center} + \includegraphics[width=.6\linewidth]{../assets/perf/db_engine.png} + \end{center} + NB: Sqlite was slow due to synchronous mode, now configurable +\end{frame} + +\begin{frame} + \frametitle{Block streaming} + \begin{center} + \only<1>{\includegraphics[width=.8\linewidth]{../assets/schema-streaming-1.png}} + \only<2>{\includegraphics[width=.8\linewidth]{../assets/schema-streaming-2.png}} + \end{center} +\end{frame} + +\begin{frame} + \frametitle{TTFB benchmark} + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/perf/ttfb.png} + \end{center} +\end{frame} + +\begin{frame} + \frametitle{Throughput benchmark} + \begin{center} + \includegraphics[width=.7\linewidth]{../assets/perf/io-0.7-0.8-minio.png} + \end{center} +\end{frame} + +% ====================== v0.9.0 =============================== + +\begin{frame} + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/tl.drawio.png} + \end{center} +\end{frame} + +\begin{frame} + \frametitle{October 2023 - Garage v0.9.0} + Focus on \underline{streamlining \& usability} + \vspace{2em} + \begin{itemize} + \item Support multiple HDDs per node + \vspace{1em} + \item S3 compatibility: + \vspace{1em} + \begin{itemize} + \item support basic lifecycle configurations + \vspace{.5em} + \item allow for multipart upload part retries + \end{itemize} + \vspace{1em} + \item LMDB by default, deprecation of Sled + \vspace{1em} + \item New layout computation algorithm + \end{itemize} +\end{frame} + + +\begin{frame} + \frametitle{Layout computation} + \begin{overprint} + \onslide<1> + \begin{center} + \includegraphics[width=\linewidth, trim=0 0 0 -4cm]{../assets/screenshots/garage_status_0.9_prod_zonehl.png} + \end{center} + \onslide<2> + \begin{center} + \includegraphics[width=.7\linewidth]{../assets/map.png} + \end{center} + \end{overprint} + \vspace{1em} + Garage stores replicas on different zones when possible +\end{frame} + +\begin{frame} + \frametitle{What a "layout" is} + \textbf{A layout is a precomputed index table:} + \vspace{1em} + + {\footnotesize + \begin{center} + \begin{tabular}{|l|l|l|l|} + \hline + \textbf{Partition} & \textbf{Node 1} & \textbf{Node 2} & \textbf{Node 3} \\ + \hline + \hline + Partition 0 & df-ymk (bespin) & Abricot (scorpio) & Courgette (neptune) \\ + \hline + Partition 1 & Ananas (scorpio) & Courgette (neptune) & df-ykl (bespin) \\ + \hline + Partition 2 & df-ymf (bespin) & Celeri (neptune) & Abricot (scorpio) \\ + \hline + \hspace{1em}$\vdots$ & \hspace{1em}$\vdots$ & \hspace{1em}$\vdots$ & \hspace{1em}$\vdots$ \\ + \hline + Partition 255 & Concombre (neptune) & df-ykl (bespin) & Abricot (scorpio) \\ + \hline + \end{tabular} + \end{center} + } + + \vspace{2em} + \visible<2->{ + The index table is built centrally using an optimal algorithm,\\ + then propagated to all nodes + } + + \vspace{1em} + \visible<3->{ + \footnotesize + Oulamara, M., \& Auvolat, A. (2023). \emph{An algorithm for geo-distributed and redundant storage in Garage}.\\ arXiv preprint arXiv:2302.13798. + } +\end{frame} + + + +% ====================== v1.0.0 =============================== + +\begin{frame} + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/tl.drawio.png} + \end{center} +\end{frame} + +\begin{frame} + \frametitle{April 2024 - Garage v1.0.0} + Focus on \underline{consistency, security \& stability} + \vspace{2em} + \begin{itemize} + \item Fix consistency issues when reshuffling data (Jepsen testing) + \vspace{1em} + \item \textbf{Security audit} by Radically Open Security + \vspace{1em} + \item Misc. S3 features (SSE-C, checksums, ...) and compatibility fixes + \end{itemize} +\end{frame} + +% ====================== v2.0.0 =============================== + +\begin{frame} + \begin{center} + \includegraphics[width=.8\linewidth]{../assets/tl.drawio.png} + \end{center} +\end{frame} + +\begin{frame} + \frametitle{Garage v2.0.0} + Focus on \underline{} + \vspace{2em} + \begin{itemize} + \item TODO + \end{itemize} +\end{frame} + + +\begin{frame} + \frametitle{Currently funding...} + + \textit{...} +\end{frame} + +\begin{frame} + \frametitle{We run community surveys} + \begin{center} + \includegraphics[width=.6\linewidth]{../assets/survey_requested_features.png} + \end{center} +\end{frame} + +% ======================================== END +% ======================================== END +% ======================================== END + +\begin{frame} + \frametitle{Where to find us} + \begin{center} + \includegraphics[width=.25\linewidth]{../../logo/garage_hires.png}\\ + \vspace{-1em} + \url{https://garagehq.deuxfleurs.fr/}\\ + \url{mailto:garagehq@deuxfleurs.fr}\\ + \texttt{\#garage:deuxfleurs.fr} on Matrix + + \vspace{1.5em} + \includegraphics[width=.06\linewidth]{../assets/logos/rust_logo.png} + \includegraphics[width=.13\linewidth]{../assets/logos/AGPLv3_Logo.png} + \end{center} +\end{frame} + +\end{document} + +%% vim: set ts=4 sw=4 tw=0 noet spelllang=en : diff --git a/doc/talks/assets/armael.jpg b/doc/talks/assets/armael.jpg new file mode 100644 index 00000000..54b97662 Binary files /dev/null and b/doc/talks/assets/armael.jpg differ diff --git a/doc/talks/assets/cluster_kind.png b/doc/talks/assets/cluster_kind.png new file mode 100644 index 00000000..80f8f4b5 Binary files /dev/null and b/doc/talks/assets/cluster_kind.png differ diff --git a/doc/talks/assets/cluster_size.png b/doc/talks/assets/cluster_size.png new file mode 100644 index 00000000..b4b0f5ce Binary files /dev/null and b/doc/talks/assets/cluster_size.png differ diff --git a/doc/talks/assets/community.png b/doc/talks/assets/community.png new file mode 100644 index 00000000..06c7a1af Binary files /dev/null and b/doc/talks/assets/community.png differ diff --git a/doc/talks/assets/quentin.jpg b/doc/talks/assets/quentin.jpg new file mode 100644 index 00000000..a68d9d7b Binary files /dev/null and b/doc/talks/assets/quentin.jpg differ diff --git a/doc/talks/assets/support.png b/doc/talks/assets/support.png new file mode 100644 index 00000000..c20d179b Binary files /dev/null and b/doc/talks/assets/support.png differ diff --git a/doc/talks/assets/tl.drawio.png b/doc/talks/assets/tl.drawio.png new file mode 100644 index 00000000..c60c310a Binary files /dev/null and b/doc/talks/assets/tl.drawio.png differ