From 191728a2cac217e96a7f1e4e9a4710606f6ad920 Mon Sep 17 00:00:00 2001
From: EuAndreh <eu@euandre.org>
Date: Wed, 12 Aug 2020 06:34:38 -0300
Subject: Add TILs section, with Atom support and i18n

- add i18n logic to support translated TIL entries and listing;
- make the website title less tied to a blog: "EuAndreh::blog" ->
  <web>EuAndreh</web>;
- remove old Atom feed link aliases;
- remove feed.all.atom and it's link in the about page;
- create Atom feed for TIL entries;
- show blog and TIL Atom feed on their listing pages (index and tils-listing);
- add root alias: / -> /en/
- remove explicit list of feeds from $IGNORED_PAGES and use a '*.atom' glob
  instead;
- also lint, assert-content and assert-unique-ref of TILs;
- fix wrong "post.date" in pastebin entry in site.json;
---
 _config.yml                |  72 +++++++++++++++--------
 _includes/feed.atom        |  20 +++----
 _layouts/default.html      |  46 ++++++++-------
 _layouts/index.html        |   7 ++-
 _layouts/til.html          |  11 ++++
 _layouts/tils-listing.html |  18 ++++++
 atom.xml                   |   1 -
 en/index.md                |   5 ++
 feed.all.atom              |   4 --
 feed.atom                  |   1 -
 feed.blog.en.atom          |   4 ++
 feed.blog.pt.atom          |   4 ++
 feed.en.atom               |   4 --
 feed.pt.atom               |   4 --
 feed.til.en.atom           |   4 ++
 feed.til.pt.atom           |   4 ++
 feed.xml                   |   1 -
 hea.md                     |   8 +++
 index.md                   |   2 +-
 rss.xml                    |   1 -
 scripts/assert-content.sh  |  13 +++-
 site.json                  |  18 +++++-
 sobre.md                   |  12 ----
 til.md                     | 144 +--------------------------------------------
 24 files changed, 178 insertions(+), 230 deletions(-)
 create mode 100644 _layouts/til.html
 create mode 100644 _layouts/tils-listing.html
 delete mode 120000 atom.xml
 create mode 100644 en/index.md
 delete mode 100644 feed.all.atom
 delete mode 120000 feed.atom
 create mode 100644 feed.blog.en.atom
 create mode 100644 feed.blog.pt.atom
 delete mode 100644 feed.en.atom
 delete mode 100644 feed.pt.atom
 create mode 100644 feed.til.en.atom
 create mode 100644 feed.til.pt.atom
 delete mode 120000 feed.xml
 create mode 100644 hea.md
 delete mode 120000 rss.xml

diff --git a/_config.yml b/_config.yml
index 35e9d05..4990238 100644
--- a/_config.yml
+++ b/_config.yml
@@ -1,5 +1,5 @@
 ---
-title: EuAndreh::blog
+title: <web>EuAndreh</web>
 url: "https://euandre.org"
 author:
   name: EuAndreh
@@ -30,48 +30,68 @@ exclude:
 collections:
   pastebins:
     output: true
+  tils:
+    output: true
 
 t:
   about:
     en: "About"
     pt: "Sobre"
   about_url:
-    en: '/about.html'
-    pt: '/sobre.html'
+    en: "/about.html"
+    pt: "/sobre.html"
+  til:
+    en: "TIL"
+    pt: "HEA"
+  til_url:
+    en: "/til.html"
+    pt: "/hea.html"
+  til_listing:
+    en: "TIL Listing"
+    pt: "Lista de HEA"
   home:
     en: "EuAndreh's blog"
     pt: "Blog do EuAndreh"
   home_url:
-    en: '/'
-    pt: '/pt/'
+    en: "/en/"
+    pt: "/pt/"
   recent_posts:
-    en: 'Recent posts'
-    pt: 'Postagens recentes'
-  feed_title:
-    en: "EuAndreh's Feed"
-    pt: "Feed do EuAndreh"
-  feed_url:
-    en: '/feed.en.atom'
-    pt: '/feed.pt.atom'
+    en: "Recent posts"
+    pt: "Postagens recentes"
+  feed:
+    title:
+      blog:
+        en: "EuAndreh's blog feed"
+        pt: "Feed do blog do EuAndreh"
+      til:
+        en: "EuAndreh's TIL feed"
+        pt: "Feed do HEA do EuAndreh"
+    url:
+      blog:
+        en: "/feed.blog.en.atom"
+        pt: "/feed.blog.pt.atom"
+      til:
+        en: "/feed.til.en.atom"
+        pt: "/feed.til.pt.atom"
   date_format:
-    en: '%B %-d, %Y'
-    pt: '%-d de %B de %Y'
+    en: "%B %-d, %Y"
+    pt: "%-d de %B de %Y"
   posted_on:
-    en: 'Posted on'
-    pt: 'Postado em'
+    en: "Posted on"
+    pt: "Postado em"
   updated_at:
-    en: 'Updated at'
-    pt: 'Atualizado em'
+    en: "Updated at"
+    pt: "Atualizado em"
   alt:
-    blog_feed:
-      en: 'Blog feed'
-      pt: 'Feed do blog'
+    atom:
+      en: "Atom/RSS icon"
+      pt: "Ícone de Atom/RSS"
     envelope_icon:
-      en: 'Envelope icon'
-      pt: 'Ícone de envelope'
+      en: "Envelope icon"
+      pt: "Ícone de envelope"
     lock_icon:
-      en: 'Lock icon'
-      pt: 'Ícone de fechadura'
+      en: "Lock icon"
+      pt: "Ícone de fechadura"
   footer:
     en: >-
       The content for this site is licensed under <a rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/">CC-BY-SA</a>. The <a href="https://git.sr.ht/~euandreh/website">code</a> is <a href="https://git.sr.ht/~euandreh/website/tree/master/LICENSE">GPLv3 or later</a>.
diff --git a/_includes/feed.atom b/_includes/feed.atom
index bf0f4d4..5451702 100644
--- a/_includes/feed.atom
+++ b/_includes/feed.atom
@@ -6,29 +6,29 @@
   <id>{{ page.url | absolute_url | xml_escape }}</id>
 
   <title type="html">{{ site.title | smartify | xml_escape }}</title>
-  <subtitle>{{ site.t.feed_title[include.lang] | smartify | xml_escape }}</subtitle>
+  <subtitle>{{ site.t.feed.title[include.kind][include.lang] | smartify | xml_escape }}</subtitle>
 
   <author>
     <name>{{ site.author.name | xml_escape }}</name>
     <email>{{ site.author.email | xml_escape }}</email>
   </author>
 
-  {% for post in include.posts %}
-    <entry xml:lang="{{ post.lang }}">
-      <title type="html">{{ post.title | smartify | strip_html | normalize_whitespace | xml_escape }}</title>
-      <link href="{{ post.url | absolute_url }}" rel="alternate" type="text/html" title="{{ post.title | xml_escape }}" />
-      <published>{{ post.date | date_to_xmlschema }}</published>
-      <updated>{{ post.updated_at | default: post.date | date_to_xmlschema }}</updated>
-      <id>{{ post.url | absolute_url | xml_escape }}</id>
+  {% for entry in include.entries %}
+    <entry xml:lang="{{ entry.lang }}">
+      <title type="html">{{ entry.title | smartify | strip_html | normalize_whitespace | xml_escape }}</title>
+      <link href="{{ entry.url | absolute_url }}" rel="alternate" type="text/html" title="{{ entry.title | xml_escape }}" />
+      <published>{{ entry.date | date_to_xmlschema }}</published>
+      <updated>{{ entry.updated_at | default: entry.date | date_to_xmlschema }}</updated>
+      <id>{{ entry.url | absolute_url | xml_escape }}</id>
 
-      <content type="html" xml:base="{{ post.url | absolute_url | xml_escape }}">{{ post.content | strip | xml_escape }}</content>
+      <content type="html" xml:base="{{ entry.url | absolute_url | xml_escape }}">{{ entry.content | strip | xml_escape }}</content>
 
       <author>
         <name>{{ site.author.name | xml_escape }}</name>
         <email>{{ site.author.email | xml_escape }}</email>
       </author>
 
-      <summary type="html">{{ post.excerpt | strip_html | normalize_whitespace | xml_escape }}</summary>
+      <summary type="html">{{ entry.excerpt | strip_html | normalize_whitespace | xml_escape }}</summary>
     </entry>
   {% endfor %}
 </feed>
diff --git a/_layouts/default.html b/_layouts/default.html
index 6a0587b..f97f5ef 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -5,7 +5,7 @@
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <link rel="stylesheet" href="/styles.css">
-    <link rel="alternate" type="application/atom+xml" href="{{ site.t.feed_url[page.lang] }}" title="{{ site.t.feed_title[page.lang] }}" />
+    <link rel="alternate" type="application/atom+xml" href="{{ site.t.feed_url[page.lang] }}" title="{{ site.t.feed.title[page.lang] }}" />
 
     <title>{{ page.title }}</title>
     <meta property="og:site_name" content="{{ site.title }}" />
@@ -29,29 +29,35 @@
         </div>
         <div id="nav-right">
           {% if page.ref != nil %}
-            {% if site.posts.size > 0 or site.pages.size > 0 %}
-              <ul>
-                {% assign lposts=site.posts | where:"ref", page.ref | sort: 'lang' %}
-                {% for lpost in lposts %}
-                  <li>
-                    <a href="{{ lpost.url }}" class="{{ lpost.lang }}">{{ lpost.lang }}</a>
-                  </li>
-                {% endfor %}
+            <ul>
+              {% assign lposts=site.posts | where:"ref", page.ref | sort: 'lang' %}
+              {% for lpost in lposts %}
+                <li>
+                  <a href="{{ lpost.url }}" class="{{ lpost.lang }}">{{ lpost.lang }}</a>
+                </li>
+              {% endfor %}
 
+              {% if page.ref == "root" %}
+                {% assign lpages=site.pages | where:"ref", "index" | sort: 'lang' %}
+              {% else %}
                 {% assign lpages=site.pages | where:"ref", page.ref | sort: 'lang' %}
-                {% for lpage in lpages %}
-                  <li>
-                    <a href="{{ lpage.url }}" class="{{ lpage.lang }}">{{ lpage.lang }}</a>
-                  </li>
-                {% endfor %}
-              </ul>
-            {% endif %}
-          {% endif %}
+              {% endif %}
+              {% for lpage in lpages %}
+                <li>
+                  <a href="{{ lpage.url }}" class="{{ lpage.lang }}">{{ lpage.lang }}</a>
+                </li>
+              {% endfor %}
 
+              {% assign ltils=site.tils | where:"ref", page.ref | sort: 'lang' %}
+              {% for ltil in ltils %}
+                <li>
+                  <a href="{{ ltil.url }}" class="{{ ltil.lang }}">{{ ltil.lang }}</a>
+                </li>
+              {% endfor %}
+            </ul>
+          {% endif %}
+          <a href="{{ site.t.til_url[page.lang] }}">{{ site.t.til[page.lang] }}</a>
           <a href="{{ site.t.about_url[page.lang] }}">{{ site.t.about[page.lang] }}</a>
-          <a href="{{ site.t.feed_url[page.lang] }}">
-            <img class="simple-icon" src="/images/atom.svg" alt="{{ site.t.alt.blog_feed[page.lang] }}" />
-          </a>
         </div>
       </nav>
     </header>
diff --git a/_layouts/index.html b/_layouts/index.html
index 0ec683d..1ce99ca 100644
--- a/_layouts/index.html
+++ b/_layouts/index.html
@@ -1,7 +1,12 @@
 ---
 layout: default
 ---
-<h1>{{ site.t.recent_posts[page.lang] }}</h1>
+<h1>
+  {{ site.t.recent_posts[page.lang] }}
+  <a href="{{ site.t.feed.url.blog[page.lang] }}">
+    <img class="simple-icon" src="/images/atom.svg" alt="{{ site.t.alt.atom[page.lang] }}" />
+  </a>
+</h1>
 {% assign lposts=site.posts | where:"lang", page.lang | sort: 'date' | reverse %}
 {% if lposts.size > 0 %}
   <ul>
diff --git a/_layouts/til.html b/_layouts/til.html
new file mode 100644
index 0000000..1a70d3b
--- /dev/null
+++ b/_layouts/til.html
@@ -0,0 +1,11 @@
+---
+layout: default
+---
+<article>
+  <section class="header">
+    {{ site.t.posted_on[page.lang] }} {{ page.date | date: site.t.date_format[page.lang] }}
+  </section>
+  <section>
+    {{ content }}
+  </section>
+</article>
diff --git a/_layouts/tils-listing.html b/_layouts/tils-listing.html
new file mode 100644
index 0000000..e254125
--- /dev/null
+++ b/_layouts/tils-listing.html
@@ -0,0 +1,18 @@
+---
+layout: default
+---
+<h1>
+  {{ site.t.til_listing[page.lang] }}
+  <a href="{{ site.t.feed.url.til[page.lang] }}">
+    <img class="simple-icon" src="/images/atom.svg" alt="{{ site.t.alt.atom[page.lang] }}" />
+  </a>
+</h1>
+{{ content }}
+<ul>
+  {% assign tils = site.tils | where:"lang", page.lang | sort: "date" | reverse %}
+  {%- for til in tils -%}
+  <li>
+    <a href="{{ til.url | relative_url }}">{{ til.title | escape }}</a> - {{ til.date | date: site.t.date_format[page.lang] }}
+  </li>
+  {%- endfor -%}
+</ul>
diff --git a/atom.xml b/atom.xml
deleted file mode 120000
index 5291931..0000000
--- a/atom.xml
+++ /dev/null
@@ -1 +0,0 @@
-feed.en.atom
\ No newline at end of file
diff --git a/en/index.md b/en/index.md
new file mode 100644
index 0000000..28cca27
--- /dev/null
+++ b/en/index.md
@@ -0,0 +1,5 @@
+---
+layout: index
+lang: en
+ref: index
+---
diff --git a/feed.all.atom b/feed.all.atom
deleted file mode 100644
index 381dd63..0000000
--- a/feed.all.atom
+++ /dev/null
@@ -1,4 +0,0 @@
----
----
-{% assign lposts = site.posts | sort: "date" | reverse %}
-{% include feed.atom posts=lposts lang="en" %}
\ No newline at end of file
diff --git a/feed.atom b/feed.atom
deleted file mode 120000
index 5291931..0000000
--- a/feed.atom
+++ /dev/null
@@ -1 +0,0 @@
-feed.en.atom
\ No newline at end of file
diff --git a/feed.blog.en.atom b/feed.blog.en.atom
new file mode 100644
index 0000000..f4ac787
--- /dev/null
+++ b/feed.blog.en.atom
@@ -0,0 +1,4 @@
+---
+---
+{% assign lposts = site.posts | where:"lang", "en" | sort: "date" | reverse %}
+{% include feed.atom entries=lposts kind="blog" lang="en" %}
\ No newline at end of file
diff --git a/feed.blog.pt.atom b/feed.blog.pt.atom
new file mode 100644
index 0000000..b697b28
--- /dev/null
+++ b/feed.blog.pt.atom
@@ -0,0 +1,4 @@
+---
+---
+{% assign lposts = site.posts | where:"lang", "pt" | sort: "date" | reverse %}
+{% include feed.atom entries=lposts kind="blog" lang="pt" %}
diff --git a/feed.en.atom b/feed.en.atom
deleted file mode 100644
index a048a54..0000000
--- a/feed.en.atom
+++ /dev/null
@@ -1,4 +0,0 @@
----
----
-{% assign lposts = site.posts | where:"lang", "en" | sort: "date" | reverse %}
-{% include feed.atom posts=lposts lang="en" %}
\ No newline at end of file
diff --git a/feed.pt.atom b/feed.pt.atom
deleted file mode 100644
index 9862e38..0000000
--- a/feed.pt.atom
+++ /dev/null
@@ -1,4 +0,0 @@
----
----
-{% assign lposts = site.posts | where:"lang", "pt" | sort: "date" | reverse %}
-{% include feed.atom lang="pt" %}
diff --git a/feed.til.en.atom b/feed.til.en.atom
new file mode 100644
index 0000000..2c64b8e
--- /dev/null
+++ b/feed.til.en.atom
@@ -0,0 +1,4 @@
+---
+---
+{% assign ltils = site.tils | where:"lang", "en" | sort: "date" | reverse %}
+{% include feed.atom entries=ltils kind="til" lang="en" %}
\ No newline at end of file
diff --git a/feed.til.pt.atom b/feed.til.pt.atom
new file mode 100644
index 0000000..ab98fae
--- /dev/null
+++ b/feed.til.pt.atom
@@ -0,0 +1,4 @@
+---
+---
+{% assign ltils = site.tils | where:"lang", "pt" | sort: "date" | reverse %}
+{% include feed.atom entries=ltils kind="tils" lang="pt" %}
diff --git a/feed.xml b/feed.xml
deleted file mode 120000
index 5291931..0000000
--- a/feed.xml
+++ /dev/null
@@ -1 +0,0 @@
-feed.en.atom
\ No newline at end of file
diff --git a/hea.md b/hea.md
new file mode 100644
index 0000000..e981ec7
--- /dev/null
+++ b/hea.md
@@ -0,0 +1,8 @@
+---
+layout: tils-listing
+lang: pt
+ref: tils
+---
+**H**oje **E**u **A**prendi (do inglês, _**T**oday **I** **L**earned_): pequenas postages de conhecimentos úteis.
+
+Cópia descarada da [Anna e só](https://til.flourishing.stream/).
diff --git a/index.md b/index.md
index 28cca27..b5fe97b 100644
--- a/index.md
+++ b/index.md
@@ -1,5 +1,5 @@
 ---
 layout: index
 lang: en
-ref: index
+ref: root
 ---
diff --git a/rss.xml b/rss.xml
deleted file mode 120000
index 5291931..0000000
--- a/rss.xml
+++ /dev/null
@@ -1 +0,0 @@
-feed.en.atom
\ No newline at end of file
diff --git a/scripts/assert-content.sh b/scripts/assert-content.sh
index 7448c61..d83ec33 100755
--- a/scripts/assert-content.sh
+++ b/scripts/assert-content.sh
@@ -34,7 +34,8 @@ get-ref() {
 }
 
 get-url() {
-  echo "${1}"  | base64 --decode | jq -r .url
+  # Remove leading / to match more closely the filesystem hierarchy
+  echo "${1}"  | base64 --decode | jq -r .url | sed 's_^/__'
 }
 
 get-date() {
@@ -69,7 +70,7 @@ for post in $(jq -r '.posts[] | @base64' "${JSON}"); do
 done
 
 echo Linting pages... >&2
-IGNORED_PAGES=(/site.json /sitemap.xml /rss.xml /atom.xml /feed.atom /feed.xml /feed.all.atom /feed.en.atom /feed.pt.atom)
+IGNORED_PAGES=(site.json sitemap.xml *.atom)
 for page in $(jq -r '.pages[] | @base64' "${JSON}"); do
   URL="$(get-url "$page")"
   if ! contains-element "${URL}" "${IGNORED_PAGES[@]}"; then
@@ -82,6 +83,11 @@ for pastebin in $(jq -r '.pastebins[] | @base64' "${JSON}"); do
   assert-frontmatter "$pastebin"
 done
 
+echo Linting tils... >&2
+for til in $(jq -r '.tils[] | @base64' "${JSON}"); do
+  assert-frontmatter "$til"
+done
+
 echo Asserting unique refs... >&2
 KNOWN_IDS=()
 assert-unique-ref() {
@@ -96,6 +102,8 @@ assert-unique-ref() {
         printf '%s\n' "${KNOWN_IDS[@]}"
         red "Duplicated lang:ref match: '${ID}'." >&2
         red "Page: ${URL}." >&2
+        echo "$page" | base64 --decode | jq
+
         exit 1
       fi
 
@@ -106,5 +114,6 @@ assert-unique-ref() {
 
 assert-unique-ref "$(jq -r '.pages[] | @base64' "${JSON}")"
 assert-unique-ref "$(jq -r '.posts[] | @base64' "${JSON}")"
+assert-unique-ref "$(jq -r  '.tils[] | @base64' "${JSON}")"
 
 echo Done. >&2
diff --git a/site.json b/site.json
index 8c22cc5..032fe2f 100644
--- a/site.json
+++ b/site.json
@@ -9,6 +9,7 @@
         "url": "{{ post.url }}",
         "lang": "{{ post.lang }}",
         "ref": "{{ post.ref }}",
+        "layout": "post",
         "content": {{ post.content | strip_html | jsonify }}
       }{% unless forloop.last %},{% endunless %}
     {% endfor %}
@@ -20,6 +21,7 @@
         "url": "{{ page.url }}",
         "lang": "{{ page.lang }}",
         "ref": "{{ page.ref }}",
+        "layout": "page",
         "content": {{ page.content | strip_html | jsonify }}
       }{% unless forloop.last %},{% endunless %}
     {% endfor %}
@@ -28,12 +30,26 @@
     {% for pastebin in site.pastebins %}
       {
         "title": "{{ pastebin.title | smartify }}",
-        "date": "{{ post.date }}",
+        "date": "{{ pastebin.date }}",
         "url": "{{ pastebin.url }}",
         "lang": "{{ pastebin.lang }}",
         "ref": "pastebin-ref",
+        "layout": "pastebin",
         "content": {{ pastebin.content | strip_html | jsonify }}
       }{% unless forloop.last %},{% endunless %}
     {% endfor %}
+  ],
+  "tils": [
+    {% for til in site.tils %}
+      {
+        "title": "{{ til.title | smartify }}",
+        "date": "{{ til.date }}",
+        "url": "{{ til.url }}",
+        "lang": "{{ til.lang }}",
+        "ref": "{{ til.ref }}",
+        "layout": "til",
+        "content": {{ til.content | strip_html | jsonify }}
+      }{% unless forloop.last %},{% endunless %}
+    {% endfor %}
   ]
 }
diff --git a/sobre.md b/sobre.md
index af241a6..900cbb4 100644
--- a/sobre.md
+++ b/sobre.md
@@ -15,18 +15,6 @@ trabalhos relacionados.
 
 Abaixo você encontra alguns projetos interessantes meus.
 
-<!-- ## Projetos de software -->
-
-<!-- ### [cool-read-macros](./cool-read-macros/) -->
-
-<!-- ### [cl-BSON](./cl-bson/) -->
-
-<!-- [cl-intbytes](./cl-intbytes/) como consequência. -->
-
 ## Outros
 
 [Lista de pastebins](./pastebins.html) (em inglês).
-
-[TIL: Useful code snippets](./til.html) (em inglês).
-
-[Feed Atom com todos os idiomas](./feed.all.atom).
diff --git a/til.md b/til.md
index f90182b..d6168b1 100644
--- a/til.md
+++ b/til.md
@@ -1,146 +1,8 @@
 ---
-layout: page
-title: "TIL: Useful code snippets"
+layout: tils-listing
 lang: en
-ref: til
+ref: tils
 ---
-
-### Bash variables
-
-```shell
-$ which git
-/run/current-system/sw/bin/git
-$ readlink $(!!)
-readlink $(which git)
-/nix/store/5bgr1xpm4m0r72h9049jbbhagxdyrnyb-git-2.28.0/bin/git
-```
-
-### Git custom work-tree checkout
-
-```shell
-git --work-tree=/path/to/outputdir checkout HEAD -- .
-```
-### Search in Git
-
-Search log messages
-
-```shell
-git log --grep='Build 0051'
-```
-
-Search content in git history
-
-```shell
-git grep 'Build 0051' $(git rev-list --all)
-```
-### Find broken symlinks
-
-```shell
-find . -xtype l
-```
-
-### Kernel version
-```shell
-uname -r
-```
-### Sending email through the command line
-
-```shell
-mail eu@euandre.org -s "This is the subject" -aFrom:eu@euandre.org <<< 'This is the message'
-```
-
-### Git bisecting
-
-Automatic Git bisect
-
-```shell
-git bisect start e1fd0a817d192c5a5df72dd7422e36558fa78e46 HEAD
-git bisect run sh -c 'git clean -ffdx && ./bootstrap && ./configure --localstatedir=/var && make && git checkout'
-```
-
-### UNIX searching commands
-
-```shell
-$ which gcc
-$ locate signal.h
-$ updatedb # add to cron?
-```
-
-### Guix contributing
-
-```shell
-$ cd ~/dev/guix/guix/
-$ git clean -ffdx
-$ guix environment guix # guix environment guix --ad-hoc help2man git strace
-$ ./bootstrap
-$ ./configure --localstatedir=/var
-$ make
-$ ./pre-inst-env guix describe
-$ ./pre-inst-env guix show $PKG
-$ ./pre-inst-env guix build $PKG
-$ ./pre-inst-env guix lint $PKG
-```
-
-v2:
-```shell
-guix environment --pure guix --ad-hoc help2man git strace -- sh -c "./bootstrap && ./configure --localstatedir=/var && make"
-```
-
-v3:
-```shell
-$ guix environment --pure guix --ad-hoc help2man git stract
-$ ./bootstrap
-$ ./configure --localstatedir=/var
-$ make
-$ ./pre-inst-env guix build $PKG
-$ ./pre-inst-env guix lint $PKG
-$ ./pre-inst-env guix refresh --list-dependent $PKG
-$ ./pre-inst-env guix build --rounds=2 $PKG
-$ ./etc/ident-code.el $PKG
-```
-
-### git mail patches
-
-Check the [guix-devel thread][0] on
-named "Re: [External] Re: New outreachy participant introduction".
-
-[0]: https://lists.gnu.org/archive/html/guix-devel/2019-10/msg00093.html
-
-### Flutter Dart `patchelf`
-
-```shell
-patchelf --set-interpreter $(cat $NIX_CC/nix-support/dynamic-linker) /home/andreh/dev/misc/flutter/bin/cache/dart-sdk/bin/dart
-```
-
-### builds.sr.ht environment variables
-
-[https://builds.sr.ht/~euandreh/job/68005](https://builds.sr.ht/~euandreh/job/68005).
-
-### `C-c M-m` in message-mode for creating `cut here` sections
-
-Or run the `scissors` function.
-
-### Software Recomendations StackExchange exists
-
-[https://softwarerecs.stackexchange.com/](https://softwarerecs.stackexchange.com/).
-
-### GPG key search
-
-```shell
-gpg --search-key eu@euandre.org
-```
-
-### Git Annex wanted
-
-```shell
-git annex wanted . 'exclude=Banshee/old-musics/* and exclude=attic/videos/* and exclude=Photos/*'
-```
-
-### Useful keybindings
-- `SPC v` for region selection
-- `SPC j s` to split sexp
-- `mod-shift-space` reset layout
-
-## Acknowledgements
+**T**oday **I** **L**earned: small entries of useful knowledge.</p>
 
 Shameless rip-off of [Anna e só](https://til.flourishing.stream/).
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