Developer Joy - The New Paradigm

developer joy: the new paradigm Holly Cummins Senior Technical Staff
Member IBM

@holly_cummins #IBM

@holly_cummins #IBM why are you smiling?

@holly_cummins #IBM why are you smiling? work is not a
place to be happy!

#IBM @holly_cummins ΑΡΙΣΤΟΤΈΛΗΣ

#IBM @holly_cummins «τελειοῖ δὲ τὴν ἐνέργειαν ἡἡδονή» ΑΡΙΣΤΟΤΈΛΗΣ

#IBM @holly_cummins «Η ευχαρίστηση στην δουλειά βάζει την τελειότητα στην
εργασία» ΑΡΙΣΤΟΤΈΛΗΣ

#IBM @holly_cummins “Pleasure in the job puts perfection in the
work.” Aristotle

#IBM @holly_cummins joy has business value.

#IBM @holly_cummins the science bit

#IBM @holly_cummins piglet litters grow faster if they play more
https://www.flickr.com/photos/tambako/8746156155

#IBM @holly_cummins job satisfaction is the no. 1 predictor of
organizational performance

@holly_cummins #IBM research shows: fun is good for business.

#IBM @holly_cummins https://hbr.org/2012/01/positive-intelligence

#IBM @holly_cummins “Your brain at positive is 31% more productive
than your brain at negative, neutral or stressed. " https://hbr.org/2012/01/positive-intelligence

#IBM @holly_cummins

#IBM @holly_cummins https://www2.warwick.ac.uk/fac/soc/economics/staff/eproto/workingpapers/happinessproductivity.pd

#IBM @holly_cummins "Individuals [who just watched a comedy video] have
approximately 12% greater productivity." https://www2.warwick.ac.uk/fac/soc/economics/staff/eproto/workingpapers/happinessproductivity.pd

@holly_cummins #IBM so how do developers become productive?

@holly_cummins #IBM so how do developers become productive? joyful?

@holly_cummins #IBM lack of joy creeps up on us productivity

@holly_cummins #IBM lack of joy creeps up on us

@holly_cummins #IBM → productivity tip for the lazy, happy, developer
get rid of boring stuff

it’s probably waste get rid of boring stuff

@holly_cummins #IBM

@holly_cummins #IBM repetitive

@holly_cummins #IBM meaningless repetitive

@holly_cummins #IBM low-value meaningless repetitive

@holly_cummins #IBM low-value meaningless repetitive repetitive

@holly_cummins #IBM low-value meaningless repetitive repetitive repetitive

@holly_cummins #IBM low-value meaningless repetitive repetitive repetitive redundant

@holly_cummins #IBM low-value meaningless repetitive repetitive repetitive repetitive redundant

@holly_cummins #IBM repetitive low-value meaningless repetitive repetitive repetitive repetitive redundant

@holly_cummins #IBM manual handoffs

@holly_cummins #IBM boilerplate code

@holly_cummins #IBM manual status updates

@holly_cummins #IBM meetings

be incremental

@holly_cummins #IBM don’t inflict your non-incrementalness on your colleagues

#IBM @holly_cummins “toil” SRE is a discipline dedicated to eliminating
toil from ops because toil isn’t worth it.

make computers do the hard work

make computers do the boring stuff

@holly_cummins #IBM (yet) computers don’t expect to have fun

@holly_cummins #IBM automation revenge! (yet) computers don’t expect to have
fun happy, lazy developer

@holly_cummins #IBM bonus: making computers do stuff is really fun

automate all the things

@holly_cummins #IBM what should be automated? - tasks that are
error-prone - tasks that people can do half-asleep

@holly_cummins #IBM

@holly_cummins #IBM you can do better than bash

go beyond infrastructure automation automate knowledge

#IBM @holly_cummins

#IBM @holly_cummins Guillaume, my CI was red. Is there a
known failure in the vertx suite?

known failure in the vertx suite? Guillaume, my CI was red. Is there a known failure in the gRPC suite?

known failure in the vertx suite? Guillaume, my CI was red. Is there a known failure in the kafka suite? Guillaume, my CI was red. Is there a known failure in the gRPC suite?

known failure in the vertx suite? Guillaume, my CI was red. Is there a known failure in the kafka suite? Guillaume, my CI was red. Is there a known failure in the gRPC suite? Guillaume

known failure in the vertx suite? Guillaume, my CI was red. Is there a known failure in the kafka suite? Guillaume, my CI was red. Is there a known failure in the gRPC suite? the solution? “auto-Guillaume” Guillaume

#IBM @holly_cummins the solution? “auto-Guillaume” with develocity

#IBM @holly_cummins

go beyond infrastructure automation make coding better

@holly_cummins #IBM let’s talk about quarkus

@holly_cummins #IBM

@holly_cummins #IBM Java dynamism

@holly_cummins #IBM build time Java dynamism

@holly_cummins #IBM build time runtime Java dynamism

@holly_cummins #IBM packaging  (maven, gradle…) build time runtime Java dynamism

@holly_cummins #IBM build time runtime Java dynamism

@holly_cummins #IBM </> build time runtime load and parse •
config files • properties • yaml • xml • etc. Java dynamism

@holly_cummins #IBM </> build time runtime Java dynamism

@holly_cummins #IBM @  @ </> build time runtime • classpath
scanning and annotation discovery • attempt to load class to enable/disable features Java dynamism

@holly_cummins #IBM @  @ </> build time runtime Java dynamism

@holly_cummins #IBM @  @ </> build time runtime build a
metamodel of the world Java dynamism

@holly_cummins #IBM @  @ </> build time runtime Java dynamism

@holly_cummins #IBM @  @ </> build time runtime start •
thread pools • I/O • etc. Java dynamism

@holly_cummins #IBM @  @ </> build time runtime ready to
do work! Java dynamism

@holly_cummins #IBM what if we start the application more than
once? @  @ </>

once? @  @ </> @  @ </>

once? @  @ </> @  @ </> @  @ </>

once? @  @ </> @  @ </> @  @ </> @  @ </>

once? @  @ </> @  @ </> @  @ </> @  @ </> so much work gets redone every time

@holly_cummins #IBM what if we initialize at build time? @ 
@ </> build time runtime

@ </> build time runtime start • thread pools • I/O • etc.

@ </> build time runtime ready to do work! start • thread pools • I/O • etc.

@holly_cummins #IBM repeated starts are now efficient @  @ </>

@holly_cummins #IBM repeated starts are now efficient @  @ </>
less wasted work

@holly_cummins #IBM outcome

@holly_cummins #IBM quarkus applications outcome

@holly_cummins #IBM quarkus applications - start faster outcome

@holly_cummins #IBM quarkus applications - start faster - use less
memory outcome

@holly_cummins #IBM quarkus applications - start faster - use less
memory - have higher throughput outcome

@holly_cummins #IBM

@holly_cummins #IBM adding developer experience improvements here is expensive

@holly_cummins #IBM adding developer experience improvements here is expensive adding
developer experience improvements here is cheap

@holly_cummins #IBM the dream

@holly_cummins #IBM don’t make humans tell the computer what the
computer already knows the dream

@holly_cummins #IBM don’t make humans tell the computer what the
computer already knows the dream is now achievable

@holly_cummins #IBM package com.example; import org.jboss.logging.Logger; public class Thing {
private static final Logger log = Logger.getLogger(Thing.class); public void doSomething() { log.info("It works!"); } }

@holly_cummins #IBM package com.example; import org.jboss.logging.Logger; public class Thing {
private static final Logger log = Logger.getLogger(Thing.class); public void doSomething() { log.info("It works!"); } } import io.quarkus.logging.Log; Log

@holly_cummins #IBM public String hello(@QueryParam("name") String name) {

@holly_cummins #IBM public String hello(@RestQuery String name) {

#IBM @holly_cummins testcontainers integration … without quarkus @TestConfiguration(proxyBeanMethods = false)
public class ContainersConfig { @Bean @ServiceConnection public PostgreSQLContainer<?> postgres() { return new PostgreSQLContainer<>(DockerImageName.parse("postgres:14")); } } public class TestApplication { public static void main(String[] args) { SpringApplication .from(MySpringDataApplication::main) .with(ContainersConfig.class) .run(args); } } @Import(ContainersConfig.class)

#IBM @holly_cummins testcontainers integration … without quarkus quarkus

@holly_cummins #IBM what if… you could inherit boilerplate Hibernate queries
from a superclass, instead of having to write them all? example: hibernate

@holly_cummins #IBM @ApplicationScoped public class GreetingRepository { public Entity findByName(int
name) { return find("name", name).firstResult(); } void persist(Entity entity) {} void delete(Entity entity) {} Entity findById(Id id) {} List<Entity> list(String query, Sort sort, Object... params) { return null; } Stream<Entity> stream(String query, Object... params) { return null; } long count() { return 0; } long count(String query, Object... params) { return 0; } } example: hibernate with panache

@holly_cummins #IBM DAO @ApplicationScoped public class GreetingRepository implements PanacheRepository<Greeting> {
public Entity findByName(int name) { return find("name", name).firstResult(); } } example: hibernate with panache

@holly_cummins #IBM machine efficiency unlocked human efficiency

@holly_cummins #IBM machine efficiency unlocked human efficiency and human joy

@holly_cummins #IBM what about the ai-lephant in the room?

@holly_cummins #IBM

@holly_cummins #IBM I don’t need a nice programming model anymore,
AI will vibe- code it all

@holly_cummins #IBM this isn’t using gen AI to automate code
generation this is making the need for the code go away

@holly_cummins #IBM

@holly_cummins #IBM 70% unnecessary code

@holly_cummins #IBM 70% unnecessary code code isn’t an asset it’s
a liability

@holly_cummins #IBM we spend far more time reading code than
writing it.

@holly_cummins #IBM story: COBOL to Java auto-conversion

@holly_cummins #IBM

@holly_cummins #IBM but if you do have to write boring
code … gen AI can help a lot.

@holly_cummins #IBM but if you do have to write boring
code … gen AI can help a lot. gen AI can help a lot.

@holly_cummins #IBM how do you know if you’re doing it
right?

#IBM @holly_cummins we can measure “time at the computer!”

#IBM @holly_cummins we can measure “time at the computer!” desks
are not the only place value is created

#IBM @holly_cummins

#IBM @holly_cummins 14% took showers speci fi cally for the
purpose of coming up with ideas

#IBM @holly_cummins I am most productive while - showering -
running

#IBM @holly_cummins I am most productive while - showering -
running this slide was written while running

use voice memo to capture all the work you do while running * the text on this slide was originally a voice memo

@holly_cummins #IBM

@holly_cummins #IBM but what if you’re not debugging-in-your-head while running?

what if you’re feeding chocolate

what if you’re feeding chocolate into the office fan, to see what happens?

@holly_cummins #IBM

@holly_cummins #IBM we work in a creative industry

@holly_cummins #IBM we work in a creative industry play helps
creativity

#IBM @holly_cummins creativity brings us joy

@holly_cummins #IBM productivity happiness

@holly_cummins #IBM it’s not a trade-off. productivity happiness

@holly_cummins #IBM it’s not a trade-off. productivity happiness it’s a
double-win.

@holly_cummins #IBM ours is the only profession where “lazy” is
a compliment

@holly_cummins #IBM we need to make it a profession where
“happy” is also a compliment

#IBM @holly_cummins

#IBM @holly_cummins the new paradigms

#IBM @holly_cummins the new paradigms - joy has business value

- get rid of dumb work

- get rid of dumb work - if you can’t get rid of the work, make computers do the work

- get rid of dumb work - if you can’t get rid of the work, make computers do the work - don’t make humans tell the computer things the computer already knows

- get rid of dumb work - if you can’t get rid of the work, make computers do the work - don’t make humans tell the computer things the computer already knows - get rid of flab from the programming model (like quarkus does!)

- get rid of dumb work - if you can’t get rid of the work, make computers do the work - don’t make humans tell the computer things the computer already knows - get rid of flab from the programming model (like quarkus does!) - measure the important metric, not the one that’s easy to measure

@holly_cummins #IBM slides https://hollycummins.com/developer-joy-paradigm-lsdd/ @hollycummins.com

Developer Joy - The New Paradigm

Developer Joy - The New Paradigm

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