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roadmap: add core tenets, move Wasm to short term goals (#470)
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# Roadmap
# Roadmap <!-- omit in toc -->

The libp2p project is creating a set of modular, loosely-coupled building blocks
(based on a shared core) for modern peer-to-peer networking. Our goal is to
enable a new generation of decentralized applications in which network nodes are
full peers, providing and consuming data, and routing traffic for one another,
all without the need for centralized infrastructure points or reliance on
third-party ownership of data.

**Table of Contents**

- [Roadmap](#roadmap)
- [Visionary](#visionary)
- [🖧 Decentralizing networks](#🖧-decentralizing-networks)
- [🤫 A spyproof libp2p](#🤫-a-spyproof-libp2p)
- [📱 libp2p in mobile devices](#📱-libp2p-in-mobile-devices)
- [💡 libp2p in IoT](#💡-libp2p-in-iot)
- [🎓 libp2p as a platform for Networks Research & Innovation](#🎓-libp2p-as-a-platform-for-networks-research--innovation)
- [🚑 Self-healing networks](#🚑-self-healing-networks)
- [📮 Offline message queue / postbox](#📮-offline-message-queue--postbox)
- [🤖 libp2p as a WASM library](#🤖-libp2p-as-a-wasm-library)
- [Evolve](#evolve)
- [✈️ WebTransport](#✈️-webtransport)
- [⏱ Full Observability](#⏱-full-observability)
- [🧪 Automated compatibility testing](#🧪-automated-compatibility-testing)
- [Stream Migration Protocol](#stream-migration-protocol)
- [WebRTC](#webrtc)
- [🤝 Low latency, efficient connection handshake](#🤝-low-latency-efficient-connection-handshake)
- [🛣️ Peer Routing Records](#🛣️-peer-routing-records)
- [🗣️ Polite peering](#🗣️-polite-peering)
- [🧱 Composable routing](#🧱-composable-routing)
- [💣 Attack resistance, threat models and security](#💣-attack-resistance-threat-models-and-security)
- [📈 Proving we are scalable and interoperable](#📈-proving-we-are-scalable-and-interoperable)
- [🌡️ Telemetry protocol](#🌡️-telemetry-protocol)
- [📩 Message-oriented transports](#📩-message-oriented-transports)
- [☎️ Reducing the dial fail rate](#️-reducing-the-dial-fail-rate)
- [🔀 Peer exchange protocol](#🔀-peer-exchange-protocol)
- [🏹 RPC and other common node communication patterns](#🏹-rpc-and-other-common-node-communication-patterns)
- [Done](#done)
- [🕸 Hole punching on TCP and QUIC](#🕸-hole-punching-on-tcp-and-quic)
full peers, provide and consume data, and route traffic for one another,
all without the need for centralized infrastructure or reliance on
third-party data ownership.

## Table of Contents <!-- omit in toc -->

- [Core Tenets](#core-tenets)
- [Implementation Roadmaps](#implementation-roadmaps)
- [Visionary](#visionary)
- [🖧 Decentralizing networks](#-decentralizing-networks)
- [🤫 A spyproof libp2p](#-a-spyproof-libp2p)
- [📱 libp2p in mobile devices](#-libp2p-in-mobile-devices)
- [💡 libp2p in IoT](#-libp2p-in-iot)
- [🎓 libp2p as a platform for Networks Research & Innovation](#-libp2p-as-a-platform-for-networks-research--innovation)
- [🚑 Self-healing networks](#-self-healing-networks)
- [📮 Offline message queue / postbox](#-offline-message-queue--postbox)
- [Evolve](#evolve)
- [✈️ WebTransport](#️-webtransport)
- [⏱ Full Observability](#-full-observability)
- [🧪 Automated compatibility testing](#-automated-compatibility-testing)
- [Stream Migration Protocol](#stream-migration-protocol)
- [WebRTC](#webrtc)
- [🤖 libp2p as a Wasm library](#-libp2p-as-a-wasm-library)
- [🤝 Low latency, efficient connection handshake](#-low-latency-efficient-connection-handshake)
- [🛣️ Peer Routing Records](#️-peer-routing-records)
- [🗣️ Polite peering](#️-polite-peering)
- [🧱 Composable routing](#-composable-routing)
- [💣 Attack resistance, threat models and security](#-attack-resistance-threat-models-and-security)
- [📈 Proving we are scalable and interoperable](#-proving-we-are-scalable-and-interoperable)
- [🌡️ Telemetry protocol](#️-telemetry-protocol)
- [📩 Message-oriented transports](#-message-oriented-transports)
- [☎️ Reducing the dial fail rate](#️-reducing-the-dial-fail-rate)
- [🔀 Peer exchange protocol](#-peer-exchange-protocol)
- [🏹 RPC and other common node communication patterns](#-rpc-and-other-common-node-communication-patterns)
- [Done](#done)
- [🕸 Hole punching on TCP and QUIC](#-hole-punching-on-tcp-and-quic)

## Core Tenets
Before we dive into what libp2p should support and enable, let's outline the core tenets that underpin the project. As maintainers, we commit to ensuring libp2p is:
- 🔒 Secure - Building on libp2p *improves* an application's security posture. We minimize vulnerabilities and act rapidly to address and report issues.
- 🪨 Stable - Releases do not unknowingly break deployed features. We maintain cross-version compatibility across libp2p releases and implementations. Deprecations are well-communicated.
- 🥽 Specified - We thoroughly specify the libp2p framework and its suite of supported protocols, independent of language or implementation. Through specifications, we coordinate and drive future developments.
- 🚀 Performant - We ensure comparable performance to widely used protocols on the Internet. We avoid performance degradations in new releases.

These tenets form the foundation for features and initiatives listed below. As a result, we generally prioritize filling any gaps in these tenets above other work.

### Implementation Roadmaps

This roadmap doesn't provide a timeline for project adoption across libp2p implementations. For specific sequencing and dates, see the different implementation roadmaps:
- [libp2p/test-plans](https://github.com/libp2p/test-plans/blob/master/ROADMAP.md)
- [go-libp2p](https://github.com/libp2p/go-libp2p/blob/master/ROADMAP.md)
- [js-libp2p](https://github.com/libp2p/js-libp2p/blob/master/ROADMAP.md)
- [rust-libp2p](https://github.com/libp2p/rust-libp2p/blob/master/ROADMAP.md)
* (other implementations: feel free to add)

## Visionary

**Our long term roadmap**.

This is the stuff that moves libp2p from "a networking toolbox to build P2P
applications" to the thing that fundamentally reshapes the architecture of the
Internet; our dreams and aspirations, the North star we should always keep in
sight; this is what motivates us and it speaks intimately to our mission
statement; the libp2p analogy of IPFS working on Mars
These are the goals that move libp2p from "a networking toolbox for building P2P
applications" to a project that fundamentally reshapes the architecture of the
Internet. They are our dreams, aspirations, and the North star we should always keep in
sight. This is what motivates us and it speaks intimately to our mission
statement; the libp2p analogy of [IPFS working on Mars](https://github.com/ipfs/roadmap/blob/master/README.md#-interplanetary-web---mars-2024-d3-e3-i4).

### 🖧 Decentralizing networks

Expand Down Expand Up @@ -192,39 +211,11 @@ roaming, etc.

- https://github.com/libp2p/notes/issues/2

### 🤖 libp2p as a WASM library

**What?** This point encompasses two things:

1. Preparing [existing
implementations](https://github.com/libp2p/rust-libp2p/issues/23) to run in
WASM environments (mainly the browser).

2. Evaluating if it's feasible to build a canonical implementation of
libp2p, that is maintained in a single language, compiling down to
WebAssembly so that it can be used from any other programming
language -- as long as the user is building a WASM application.
(The feasibility of this idea is unknown as this time;
particularly the VM doesn't expose a socket API, but the
Emscripten SDK emulates IP sockets over WebSockets.)

**Why?** Aside from targeting WASM use cases, having one canonical
implementation of libp2p that can *run anywhere* could help focus the
team's time on building new features, instead of keeping a multitude of
implementations across different languages in sync, i.e. create more
value and impact. WASM also presents a huge vector for making libp2p the
de-facto networking stack, for cases where WASM is a suitable deployment
model.

**Links:**

- [WASM support in rust-libp2p](https://github.com/libp2p/rust-libp2p/issues/23).

## Evolve

**Our short-term roadmap**.

This is the stuff pushing the existing libp2p stack forward.
These are the projects pushing the existing libp2p stack forward.

### ✈️ WebTransport

Expand Down Expand Up @@ -316,6 +307,31 @@ be achieved with the [WebTransport](#✈️-webtransport) protocol.
- Tracking issue https://github.com/libp2p/specs/issues/220
- Specification draft https://github.com/libp2p/specs/pull/412

### 🤖 libp2p as a Wasm library

**What?** This point encompasses two things:

1. Preparing [existing
implementations](https://github.com/libp2p/rust-libp2p/issues/2617) to run in
Wasm environments (mainly the browser).

2. Evaluating if it's feasible to build a canonical implementation of
libp2p, that is maintained in a single language, compiling down to
WebAssembly so that it can be used from any other programming
language -- as long as the user is building a Wasm application.

**Why?** Aside from targeting Wasm use cases, having one canonical
implementation of libp2p that can *run anywhere* could help focus the
team's time on building new features, instead of keeping a multitude of
implementations across different languages in sync, i.e. create more
value and impact. Wasm also presents a huge vector for making libp2p the
de-facto networking stack, for cases where Wasm is a suitable deployment
model.

**Links:**

- [Wasm support in rust-libp2p](https://github.com/libp2p/rust-libp2p/issues/2617).

### 🤝 Low latency, efficient connection handshake

**High priority for: IPFS**
Expand Down

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