add supabase's cover letter to serve as a template

source/cover-letter.md

@@ -0,0 +1,59 @@
+Vladan Popovic
+
++381 62 1436099
+
+vladanovic@gmail.com
+
+28.06.2023
+
+\
+
+Dear _________,
+
+I'm Vladan, a software developer and systems engineer with ~20 years of
+professional experience spanning in multiple fields, from web development to
+systems adminstrator / devops to SRE.
+
+I'm really excited to apply for a Rust developer role at _________. I
+understand I might be lacking professional Rust experience, but I really like
+the language and ecosystem that I truly believe I'll make good pretty quickly.
+I have experience writing some services in Rust, like a [**Git frontend (JSON API
++ SPA) I made for an ActivityPub federated selfhosted
+forge**](https://git.vp.mk/ui/git-social.git/master/about) which unfortunately
+never saw the light of day due to the highly experimental libraries I used
+([**tide**](https://github.com/http-rs/tide) on the backend +
+[**seed**](https://github.com/seed-rs/seed) for the SPA app), but of course the
+main issues being lack of time and energy. I'm eager to return to it at some
+point though, started rewriting it in
+[**Axum**](https://gitea.vp.mk/git-social/git-social-server) and feel pretty
+enthusiastic again.
+
+Another Rust project I have contributed to is a [**lock free SPMC
+queue**](https://github.com/filipdulic/bus-queue) that me and a friend used to
+produce a high bandwith FOREX streaming service (~500 messages/sec to 10K
+consumers is what we've measured at most on our laptops). Although my
+participation in the code wasn't as large as my friend's, I heavily
+participated in the design phase, had daily pair-programming sessions and made
+a lot of contributions in the server streaming the data, rather than the
+bus-queue itself.
+
+In my free time this year I started working on a personal e-bike tracker device
+based on esp32 and a sim800l GSM modem. The code can be found
+[**here**](https://gitea.vp.mk/e-bike-tracker/). It's not something I'm extremely
+proud of, but it's my first ever embedded project and I value it as a learning
+experience.
+
+Postgres is the RDBMS I have the most experience with. I used to manage a
+relatively big number of Postgres clusters at my previous work, debugged
+version migration failures on weekly level and monitored, fixed backup/
+out-of-sync and similar issues on daily level, plugin failures during version
+upgrades, etc.
+
+I'm also a huge free and opensource software enthusiast, an honorary member of
+Macedonia's Free Software NGO and a member of Belgrade's first hackerspace
+where I used to promote free and opensource software, teach python, git, web
+technologies, linux, system administration, etc.
+
+Wish you all the best,
+
+Vladan

tox.ini

@@ -15,3 +15,7 @@ commands =
 [testenv:cv]
 allowlist_externals = /usr/bin/pandoc
 commands = pandoc -V geometry:margin=1.5in --from=markdown -o build/cv.pdf source/cv.md
+
+[testenv:cover]
+allowlist_externals = /usr/bin/pandoc
+commands = pandoc -V geometry:margin=1.5in --from=markdown -o build/cover-letter.pdf source/cover-letter.md