Transition away from GitHub repository

* Change link footer and onboarding model to point to our personal Git
  repository and direct folks to email us for collaboration
* Remove now-unnecessary .github folder and add it to .gitignore [I am
  not actually sure if this will prevent us from getting those files
  again in the future.]
* Restore English locale to upstream version and move our changes into
  the en-cafe custom locale.
* Remove most of the README for clarity.

After GitHub's contract with ICE came to light, we moved our personal
projects away from the site. With Copilot now effectively laundering
code under free licenses through machine learning by claiming that
training a model is "fair use" even when it directly quotes the input,
it's clear now that making the effort to move our Mastodon fork off of
GitHub is worth the effort. But even if the model *never* recited
anyone's source, we consider it to be clearly unethical to use open
source code in this way without a permissive license or written
consent from the authors of any non-trivial contributions. Whether or
not the law agrees, this is clearly a derivative work in the colloquial
sense of the term.

We needed to build our own CI/CD solution in the next week and a half
anyway because Docker Hub is removing automatic builds from the free
tier.

We're under no illusions that moving to our personal Git host will
actually stop anyone from doing whatever they want with what we post
publicly on the Internet. But we're both sending a message and
learning how to build our own infrastructure, which will hopefully be
helpful to us in the future.

You can read more about GitHub's ICE deals here:
https://www.zdnet.com/article/microsoft-github-ceo-why-we-defend-ice-deal-in-the-face-of-employee-anger/

You can read about GitHub Copilot quoting source code, and the steps
they've taken to reduce its frequency, here:
https://docs.github.com/en/github/copilot/research-recitation

8 files changed, 0 insertions, 157 deletions

diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
deleted file mode 100644
index 32919bd50..000000000
--- a/.github/CODEOWNERS
+++ /dev/null
@@ -1,32 +0,0 @@
-# CODEOWNERS for tootsuite/mastodon
-
-# Translators
-# To add translator, copy these lines, replace `fr` with appropriate language code and replace `@żelipapą` with user's GitHub nickname preceded by `@` sign or e-mail address.
-# /app/javascript/mastodon/locales/fr.json @żelipapą
-# /app/views/user_mailer/*.fr.html.erb @żelipapą
-# /app/views/user_mailer/*.fr.text.erb @żelipapą
-# /config/locales/*.fr.yml @żelipapą
-# /config/locales/fr.yml @żelipapą
-
-# Polish
-/app/javascript/mastodon/locales/pl.json @m4sk1n
-/app/views/user_mailer/*.pl.html.erb @m4sk1n
-/app/views/user_mailer/*.pl.text.erb @m4sk1n
-/config/locales/*.pl.yml @m4sk1n
-/config/locales/pl.yml @m4sk1n
-
-# French
-/app/javascript/mastodon/locales/fr.json @aldarone
-/app/javascript/mastodon/locales/whitelist_fr.json @aldarone
-/app/views/user_mailer/*.fr.html.erb @aldarone
-/app/views/user_mailer/*.fr.text.erb @aldarone
-/config/locales/*.fr.yml @aldarone
-/config/locales/fr.yml @aldarone
-
-# Dutch
-/app/javascript/mastodon/locales/nl.json @jeroenpraat
-/app/javascript/mastodon/locales/whitelist_nl.json @jeroenpraat
-/app/views/user_mailer/*.nl.html.erb @jeroenpraat
-/app/views/user_mailer/*.nl.text.erb @jeroenpraat
-/config/locales/*.nl.yml @jeroenpraat
-/config/locales/nl.yml @jeroenpraat
diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
deleted file mode 100644
index 9526e17db..000000000
--- a/.github/FUNDING.yml
+++ /dev/null
@@ -1,3 +0,0 @@
-patreon: mastodon
-open_collective: mastodon
-github: [Gargron]
diff --git a/.github/ISSUE_TEMPLATE/1.bug_report.yml b/.github/ISSUE_TEMPLATE/1.bug_report.yml
deleted file mode 100644
index 4f420416b..000000000
--- a/.github/ISSUE_TEMPLATE/1.bug_report.yml
+++ /dev/null
@@ -1,42 +0,0 @@
-name: Bug Report
-description: If something isn't working as expected
-labels: bug
-body:
-  - type: markdown
-    attributes:
-      value: |
-        Make sure that you are submitting a new bug that was not previously reported or already fixed.
-
-        Please use a concise and distinct title for the issue.
-  - type: input
-    attributes:
-      label: Expected behaviour
-      description: What should have happened?
-    validations:
-      required: true
-  - type: input
-    attributes:
-      label: Actual behaviour
-      description: What happened?
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: Steps to reproduce the problem
-      description: What were you trying to do?
-      value: |
-        1.
-        2.
-        3.
-        ...
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: Specifications
-      description: |
-        What version or commit hash of Mastodon did you find this bug in?
-
-        If a front-end issue, what browser and operating systems were you using?
-    validations:
-      required: true
diff --git a/.github/ISSUE_TEMPLATE/2.feature_request.yml b/.github/ISSUE_TEMPLATE/2.feature_request.yml
deleted file mode 100644
index 00aad1341..000000000
--- a/.github/ISSUE_TEMPLATE/2.feature_request.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-name: Feature Request
-description: I have a suggestion
-body:
-  - type: markdown
-    attributes:
-      value: |
-        Please use a concise and distinct title for the issue.
-
-        Consider: Could it be implemented as a 3rd party app using the REST API instead?
-  - type: textarea
-    attributes:
-      label: Pitch
-      description: Describe your idea for a feature. Make sure it has not already been suggested/implemented/turned down before.
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: Motivation
-      description: Why do you think this feature is needed? Who would benefit from it?
-    validations:
-      required: true
diff --git a/.github/ISSUE_TEMPLATE/3.support.md b/.github/ISSUE_TEMPLATE/3.support.md
deleted file mode 100644
index e2217da8b..000000000
--- a/.github/ISSUE_TEMPLATE/3.support.md
+++ /dev/null
@@ -1,10 +0,0 @@
----
-name: Support
-about: Ask for help with your deployment
-title: DO NOT CREATE THIS ISSUE
----
-
-We primarily use GitHub as a bug and feature tracker. For usage questions, troubleshooting of deployments and other individual technical assistance, please use one of the resources below:
-
-- https://discourse.joinmastodon.org
-- #mastodon on irc.freenode.net
diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml
deleted file mode 100644
index 768868516..000000000
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ /dev/null
@@ -1,5 +0,0 @@
-blank_issues_enabled: false
-contact_links:
-  - name: Mastodon Meta Discussion Board
-    url: https://discourse.joinmastodon.org/
-    about: Please ask and answer questions here.
diff --git a/.github/stale.yml b/.github/stale.yml
deleted file mode 100644
index 6601ef8c0..000000000
--- a/.github/stale.yml
+++ /dev/null
@@ -1,10 +0,0 @@
-daysUntilStale: 120
-daysUntilClose: 7
-exemptLabels:
-  - security
-staleLabel: wontfix
-markComment: >
-  This issue has been automatically marked as stale because it has not had
-  recent activity. It will be closed if no further activity occurs. Thank you
-  for your contributions.
-only: pulls
diff --git a/.github/workflows/check-i18n.yml b/.github/workflows/check-i18n.yml
deleted file mode 100644
index 398e78b0f..000000000
--- a/.github/workflows/check-i18n.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: Check i18n
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-env:
-  RAILS_ENV: test
-
-jobs:
-  check-i18n:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Install system dependencies
-      run: |
-        sudo apt-get update
-        sudo apt-get install -y libicu-dev libidn11-dev libprotobuf-dev protobuf-compiler
-    - name: Set up Ruby
-      uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: '2.7'
-        bundler-cache: true
-    - name: Check locale file normalization
-      run: bundle exec i18n-tasks check-normalized
-    - name: Check for unused strings
-      run: bundle exec i18n-tasks unused -l en
-    - name: Check for wrong string interpolations
-      run: bundle exec i18n-tasks check-consistent-interpolations
-    - name: Check that all required locale files exist
-      run: bundle exec rake repo:check_locales_files