Clicking the following links to install search engines to uweb's home screen.
Recommended engines (append any of following to file "home5.search")：bing image:http://bing.com/images/search?q=
wolfram:https://www.wolframalpha.com/input/?i=
wiki:https://en.wikipedia.org/wiki/Special:Search?search=
Youtube:https://www.youtube.com/results?search_query=
Facebook:https://www.facebook.com/search/str/%s/keywords_search
Instagram:https://www.instagram.com/explore/tags/%s/
boardreader:https://boardreader.com/s/%s.html
Note: "Engines" needs file "engine.search"，whose format is same as "home.search" except that the keyword part of url must be denoted with "%s". Pressing the right arrow button on the search result page will automatically query with next engine in the file.
Common engines:
google:https://google.com/search?q=
bing:http://www.bing.com/search?q=
neeva:https://neeva.com/search?q=
seekr:https://www.seekr.com/search?query=
xda:https://www.xda-developers.com/search/
Feeling lucky:https://google.com/search?btnl=1&q=
pix:https://www.google.com/search?tbm=isch&q=
youtube:https://youtube.com/results?search_query=
news:https://news.search.yahoo.com/search/news?p=
stock:https://finance.yahoo.com/quote/
amazon:https://www.amazon.com/s/?field-keywords=
weather:https://www.wunderground.com/cgi-bin/findweather/getForecast?query=
IMDB:https://www.imdb.com/find?q=
film review:https://www.rottentomatoes.com/search/?search=
goodreads:https://www.goodreads.com/search?query=
audible:http://www.audible.com/search?sort=review-rank&advsearchKeywords=
audiobay:http://audiobookbay.nl/?s=
language:
webster1913:https://www.websters1913.com/words/
merriam-webster:https://www.merriam-webster.com/dictionary/
dictionary:https://www.dictionary.com/browse/
freedictionary:https://www.thefreedictionary.com/
wordreference:https://www.wordreference.com/definition/
vocabulary:https://www.vocabulary.com/dictionary/
etymology:https://www.etymonline.com/search?q=
powerthesaurus:https://www.powerthesaurus.org/%s/synonyms
macmillanthesaurus:https://www.macmillanthesaurus.com/search/?auto=complete&q=
lword:https://lword.top/word.html#
webster:https://www.merriam-webster.com/dictionary/
googledict:http://googledictionary.freecollocation.com/meaning?word=
Science:
britannica:https://www.britannica.com/search?query=
mathRef:https://reference.wolfram.com/search/?q=
mathSE:https://math.stackexchange.com/search?q=
phySE:https://physics.stackexchange.com/search?q=
physicsForum:https://www.physicsforums.com/search/2195918/?q=
chemSE:https://chemistry.stackexchange.com/search?q=
chem:https://www.ncbi.nlm.nih.gov/pccompound?term=
proofwiki:https://proofwiki.org/w/index.php?search=
physics:http://www.physics.org/explore-results-all.asp?q=
biology:https://www.biologyonline.com/dictionary/
nist chem:https://webbook.nist.gov/cgi/cbook.cgi?Formula=
chemiday:https://chemiday.com/search/?lang=en&q=
chem.libretexts:https://chem.libretexts.org/Special:Search?q=
bio.libretexts:https://bio.libretexts.org/Special:Search?q=
phys.libretexts:https://phys.libretexts.org/Special:Search?q=
med.libretexts:https://med.libretexts.org/Special:Search?q=
math.libretexts:https://math.libretexts.org/Special:Search?q=
stats.libretexts:https://stats.libretexts.org/Special:Search?q=
geo.libretexts:https://geo.libretexts.org/Special:Search?q=
eng.libretexts:https://eng.libretexts.org/Special:Search?q=
biz.libretexts:https://biz.libretexts.org/Special:Search?q=
human.libretexts:https://human.libretexts.org/Special:Search?q=
socialsci.libretexts:https://socialsci.libretexts.org/Special:Search?q=
workforce.libretexts:https://workforce.libretexts.org/Special:Search?q=
Engines that can use as documentation:
oscobo:https://www.oscobo.com/search.php?q=
teoma:https://www.teoma.com/web?q=
lycos:https://search.lycos.com/web/?q=
technorati:http://technorati.com/search/index.php?q=
qwant:https://lite.qwant.com/?q=
swisscows:https://swisscows.com/web?query=
duck:https://duckduckgo.com/?q=
mojeek:https://www.mojeek.com/search?q=
gigablast:https://www.gigablast.com/search?c=main&qlangcountry=en-us&q=
yandex:https://yandex.com/search/?text=
searx:https://searchx.mobi/?q=
Cloud storage:
Scholar:
sweetsearch:https://sweetsearch.com/search?q=
refseek:https://www.refseek.com/search?q=
google scholar:https://scholar.google.com/scholar?q=
semanticscholar:https://www.semanticscholar.org/search?sort=relevance&q=
Developer:
git:https://github.com/search?type=Repositories&q=
code:http://searchcode.com/?q=
symbolhound:http://symbolhound.com/?q=
vector:https://vector.me/search/
jsdelivr:http://www.jsdelivr.com/?query=
greasyfork:https://greasyfork.org/en/scripts?sort=updated&q=
app:
local engines(May need termux customized edition and tools like bc，gnuplot etc.):
bc:d:text/html:echo \'%s\'|bc -l -q:
2D plot:d:image/svg+xml:gnuplot -e \'set term svg;set output; plot %s\':
3D plot:d:image/svg+xml:gnuplot -e \'set term svg;set output; splot %s\':